const datadictionary = [{"variable_name": "gebdat", "variable_category": "Patient data", "variable_label":"Date of birth"},{"variable_name": "gesl", "variable_category": "Patient data", "variable_label":"Sex"},{"variable_name": "iacr", "variable_category": "Patient data", "variable_label":"Counts following IACR rules for reporting incidence"},{"variable_name": "incdat", "variable_category": "Patient data", "variable_label":"Incidence date"},{"variable_name": "incjr", "variable_category": "Patient data", "variable_label":"Year of incidence"},{"variable_name": "ink_ses", "variable_category": "Patient data", "variable_label":"Median income in postal code area as a proxy for socioeconomic status (SES)"},{"variable_name": "leeft", "variable_category": "Patient data", "variable_label":"Age at incidence date"},{"variable_name": "mal", "variable_category": "Patient data", "variable_label":"Previous or subsequent malignancies"},{"variable_name": "mal_incdat", "variable_category": "Patient data", "variable_label":"Incidence date of previous or subsequent malignancy"},{"variable_name": "mal_int", "variable_category": "Patient data", "variable_label":"Interval between incidence date and date of previous or subsequent malignancy"},{"variable_name": "mal_tumsoort", "variable_category": "Patient data", "variable_label":"Tumour type of previous or subsequent malignancy"},{"variable_name": "ovldat", "variable_category": "Patient data", "variable_label":"Date of death"},{"variable_name": "post_cijf", "variable_category": "Patient data", "variable_label":"Numeric part of the patient's postal code at the time of incidence"},{"variable_name": "vit_stat_dat", "variable_category": "Patient data", "variable_label":"Date of vital status"},{"variable_name": "vit_stat_int", "variable_category": "Patient data", "variable_label":"Interval between incidence date and date of vital status (days)"},{"variable_name": "vit_stat", "variable_category": "Patient data", "variable_label":"Vital status"},{"variable_name": "topo", "variable_category": "Tumour data", "variable_label":"Topography excluding sublocation"},{"variable_name": "topo_sublok", "variable_category": "Tumour data", "variable_label":"Topography including sublocation"},{"variable_name": "morf", "variable_category": "Tumour data", "variable_label":"Morphology"},{"variable_name": "morf_cat", "variable_category": "Tumour data", "variable_label":"Morphology (categories)"},{"variable_name": "gedrag", "variable_category": "Tumour data", "variable_label":"Behaviour"},{"variable_name": "diffgrad", "variable_category": "Tumour data", "variable_label":"(Differentiation) grade"},{"variable_name": "ct", "variable_category": "Tumour data", "variable_label":"cT (TNM)"},{"variable_name": "cn", "variable_category": "Tumour data", "variable_label":"cN (TNM)"},{"variable_name": "cm", "variable_category": "Tumour data", "variable_label":"cM (TNM)"},{"variable_name": "pt", "variable_category": "Tumour data", "variable_label":"pT (TNM)"},{"variable_name": "pn", "variable_category": "Tumour data", "variable_label":"pN (TNM)"},{"variable_name": "pm", "variable_category": "Tumour data", "variable_label":"pM (TNM)"},{"variable_name": "cstadium", "variable_category": "Tumour data", "variable_label":"Clinical TNM stage"},{"variable_name": "pstadium", "variable_category": "Tumour data", "variable_label":"Pathological TNM stage"},{"variable_name": "stadium", "variable_category": "Tumour data", "variable_label":"TNM stage"},{"variable_name": "ceod", "variable_category": "Tumour data", "variable_label":"Clinical tumour extension (EoD)"},{"variable_name": "peod", "variable_category": "Tumour data", "variable_label":"Pathological tumour extension (EoD)"},{"variable_name": "ond_lymf", "variable_category": "Tumour data", "variable_label":"Number of regional lymph nodes examined"},{"variable_name": "pos_lymf", "variable_category": "Tumour data", "variable_label":"Number of positive regional lymph nodes"},{"variable_name": "diag_basis", "variable_category": "Tumour data", "variable_label":"Basis for diagnosis"},{"variable_name": "afp", "variable_category": "Tumour data", "variable_label":"Alpha-fetoprotein (AFP) (\u00b5g/L)"},{"variable_name": "albumine", "variable_category": "Tumour data", "variable_label":"Albumin (g/L)"},{"variable_name": "arterieel_vaatbetr", "variable_category": "Tumour data", "variable_label":"Arterial vascular involvement based on imaging"},{"variable_name": "bclc", "variable_category": "Tumour data", "variable_label":"BCLC classification"},{"variable_name": "beeld_m0", "variable_category": "Tumour data", "variable_label":"M0 on imaging"},{"variable_name": "bilirubine", "variable_category": "Tumour data", "variable_label":"Total bilirubin (\u00b5mol/L)"},{"variable_name": "bismuth_corlette", "variable_category": "Tumour data", "variable_label":"Bismuth-Corlette classification"},{"variable_name": "ca199", "variable_category": "Tumour data", "variable_label":"Carbohydrate antigen 19-9 (CA19-9) (kU/L = U/ml)"},{"variable_name": "cea", "variable_category": "Tumour data", "variable_label":"Carcinoembryonic antigen (CEA) (\u00b5g/L)"},{"variable_name": "crp", "variable_category": "Tumour data", "variable_label":"C-reactive protein (CRP) (mg/L)"},{"variable_name": "hb", "variable_category": "Tumour data", "variable_label":"Haemoglobin (mmol/L)"},{"variable_name": "inr", "variable_category": "Tumour data", "variable_label":"International Normalised Ratio (INR)"},{"variable_name": "klin_tum_afm", "variable_category": "Tumour data", "variable_label":"Maximum clinical diameter of the primary tumour (mm)"},{"variable_name": "kreatinine", "variable_category": "Tumour data", "variable_label":"Creatinine (\u00b5mol/L)"},{"variable_name": "ldh", "variable_category": "Tumour data", "variable_label":"Lactate dehydrogenase (U/L)"},{"variable_name": "lymfocyten", "variable_category": "Tumour data", "variable_label":"Lymphocyte count (x10^9/L)"},{"variable_name": "meta_incdat", "variable_category": "Tumour data", "variable_label":"Incidence date of metastasis"},{"variable_name": "meta_int", "variable_category": "Tumour data", "variable_label":"Interval between incidence date and date of metastasis (days)"},{"variable_name": "meta_topo_sublok", "variable_category": "Tumour data", "variable_label":"Topography including sublocation of metastasis"},{"variable_name": "meta_topo", "variable_category": "Tumour data", "variable_label":"Topography excluding sublocation of metastasis"},{"variable_name": "meta_lok_aantal", "variable_category": "Tumour data", "variable_label":"Number of topographic locations with metastases present"},{"variable_name": "meta_bijnier", "variable_category": "Tumour data", "variable_label":"Adrenal metastasis/metastases present"},{"variable_name": "meta_bot", "variable_category": "Tumour data", "variable_label":"Bone metastasis/metastases present"},{"variable_name": "meta_hersenen", "variable_category": "Tumour data", "variable_label":"Brain metastasis/metastases present"},{"variable_name": "meta_lever", "variable_category": "Tumour data", "variable_label":"Liver metastasis/metastases present"},{"variable_name": "meta_long", "variable_category": "Tumour data", "variable_label":"Lung metastasis/metastases present"},{"variable_name": "meta_lymf", "variable_category": "Tumour data", "variable_label":"Non-regional lymph node metastasis/metastases present"},{"variable_name": "meta_overig", "variable_category": "Tumour data", "variable_label":"Other metastasis/metastases present"},{"variable_name": "meta_perit", "variable_category": "Tumour data", "variable_label":"Peritoneal metastasis/metastases present"},{"variable_name": "multifoc", "variable_category": "Tumour data", "variable_label":"Tumour multifocality"},{"variable_name": "neutrofielen", "variable_category": "Tumour data", "variable_label":"Neutrophil count (x10^9/L)"},{"variable_name": "noduli", "variable_category": "Tumour data", "variable_label":"Number of nodules of the primary tumour in the liver"},{"variable_name": "pa_tum_afm", "variable_category": "Tumour data", "variable_label":"Maximum pathological diameter of the primary tumour (mm)"},{"variable_name": "resectabiliteit", "variable_category": "Tumour data", "variable_label":"Resectability of the tumour based on vascular involvement"},{"variable_name": "trombocyten", "variable_category": "Tumour data", "variable_label":"Platelet count (x10^9/L)"},{"variable_name": "veneus_vaatbetr", "variable_category": "Tumour data", "variable_label":"Venous vascular involvement based on imaging"},{"variable_name": "ycm", "variable_category": "Tumour data", "variable_label":"ycM (TNM)"},{"variable_name": "ycn", "variable_category": "Tumour data", "variable_label":"ycN (TNM)"},{"variable_name": "yct", "variable_category": "Tumour data", "variable_label":"ycT (TNM)"},{"variable_name": "contact_zkh1", "variable_category": "Process data", "variable_label":"Hospital of first contact regarding malignancy"},{"variable_name": "contact_zkh1_consult_dat", "variable_category": "Process data", "variable_label":"Date of first consultation at the hospital of initial contact related to the malignancy"},{"variable_name": "contact_zkh1_consult_int", "variable_category": "Process data", "variable_label":"Interval between incidence date and first hospital consultation"},{"variable_name": "curatief_behplan", "variable_category": "Process data", "variable_label":"Treatment plan with curative intent"},{"variable_name": "diag_lap_dat[1-2]", "variable_category": "Process data", "variable_label":"Date of diagnostic laparoscopy[1-2]"},{"variable_name": "diag_lap_int[1-2]", "variable_category": "Process data", "variable_label":"Interval between incidence date and date of diagnostic laparoscopy (days)[1-2]"},{"variable_name": "diag_lap", "variable_category": "Process data", "variable_label":"Diagnostic laparoscopy performed"},{"variable_name": "diag_reden", "variable_category": "Process data", "variable_label":"Reason for diagnostic assessment"},{"variable_name": "diag_lap_uitslag[1-2]", "variable_category": "Process data", "variable_label":"Result of diagnostic laparoscopy[1-2]"},{"variable_name": "diag_lap_zkh[1-2]", "variable_category": "Process data", "variable_label":"Hospital where diagnostic laparoscopy was performed[1-2]"},{"variable_name": "expert_bel_ther_zkh", "variable_category": "Process data", "variable_label":"Hospital of main treatment is a specialised centre"},{"variable_name": "expert_contact_zkh1", "variable_category": "Process data", "variable_label":"Hospital of first contact related to the malignancy is a specialised centre"},{"variable_name": "mdo", "variable_category": "Process data", "variable_label":"Discussed in multidisciplinary team meeting"},{"variable_name": "mdo_voor_ther", "variable_category": "Process data", "variable_label":"Discussed in MDT prior to initiation of tumour-directed therapy"},{"variable_name": "zkh_patnum", "variable_category": "Process data", "variable_label":"Patient number in hospital"},{"variable_name": "asa", "variable_category": "Risk factors", "variable_label":"ASA classification"},{"variable_name": "cci", "variable_category": "Risk factors", "variable_label":"Charlson Comorbidity Index (weighted)"},{"variable_name": "cci_aids", "variable_category": "Risk factors", "variable_label":"AIDS (including HIV) according to the Charlson Comorbidity Index"},{"variable_name": "cci_cat", "variable_category": "Risk factors", "variable_label":"Number of categories according to the Charlson Comorbidity Index"},{"variable_name": "cci_chf", "variable_category": "Risk factors", "variable_label":"Congestive heart failure according to the Charlson Comorbidity Index"},{"variable_name": "cci_collagenosis", "variable_category": "Risk factors", "variable_label":"Collagenosis according to the Charlson Comorbidity Index"},{"variable_name": "cci_copd", "variable_category": "Risk factors", "variable_label":"Chronic obstructive pulmonary disease according to the Charlson Comorbidity Index"},{"variable_name": "cci_cvd", "variable_category": "Risk factors", "variable_label":"Cerebrovascular disease according to the Charlson Comorbidity Index"},{"variable_name": "cci_dementia", "variable_category": "Risk factors", "variable_label":"Dementia according to the Charlson Comorbidity Index"},{"variable_name": "cci_dm", "variable_category": "Risk factors", "variable_label":"Diabetes mellitus according to the Charlson Comorbidity Index"},{"variable_name": "cci_eod_dm", "variable_category": "Risk factors", "variable_label":"Diabetes with end-organ damage according to the Charlson Comorbidity Index"},{"variable_name": "cci_mild_liver", "variable_category": "Risk factors", "variable_label":"Mild liver disease according to the Charlson Comorbidity Index"},{"variable_name": "cci_severe_liver", "variable_category": "Risk factors", "variable_label":"Severe or moderate liver disease according to the Charlson Comorbidity Index"},{"variable_name": "cci_malignancy", "variable_category": "Risk factors", "variable_label":"Other malignancy according to the Charlson Comorbidity Index"},{"variable_name": "cci_metastatic", "variable_category": "Risk factors", "variable_label":"Other metastatic solid tumour according to the Charlson Comorbidity Index"},{"variable_name": "cci_mi", "variable_category": "Risk factors", "variable_label":"Myocardial infarction according to the Charlson Comorbidity Index"},{"variable_name": "cci_plegia", "variable_category": "Risk factors", "variable_label":"Hemiplegia or paraplegia according to the Charlson Comorbidity Index"},{"variable_name": "cci_pvd", "variable_category": "Risk factors", "variable_label":"Peripheral vascular disease according to the Charlson Comorbidity Index"},{"variable_name": "cci_renal", "variable_category": "Risk factors", "variable_label":"Moderate or severe renal disease according to the Charlson Comorbidity Index"},{"variable_name": "cci_ulcer", "variable_category": "Risk factors", "variable_label":"Ulcer disease according to the Charlson Comorbidity Index"},{"variable_name": "child_pugh", "variable_category": "Risk factors", "variable_label":"Child-Pugh classification"},{"variable_name": "diag_gewicht", "variable_category": "Risk factors", "variable_label":"Weight at diagnosis (kg)"},{"variable_name": "gebr_gewicht", "variable_category": "Risk factors", "variable_label":"Usual weight (kg)"},{"variable_name": "lengte", "variable_category": "Risk factors", "variable_label":"Patient height (cm)"},{"variable_name": "levercirrose", "variable_category": "Risk factors", "variable_label":"Liver cirrhosis present"},{"variable_name": "perf_stat", "variable_category": "Risk factors", "variable_label":"WHO performance status before start of therapy"},{"variable_name": "risicofactor", "variable_category": "Risk factors", "variable_label":"Risk factors for hepatocellular carcinoma"},{"variable_name": "bypass", "variable_category": "Treatment data", "variable_label":"Bypass procedure performed by surgeon"},{"variable_name": "bypass_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of bypass procedure[1-2]"},{"variable_name": "bypass_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and date of bypass procedure (days)[1-2]"},{"variable_name": "bypass_chir_tech[1-2]", "variable_category": "Treatment data", "variable_label":"Surgical technique of the bypass procedure[1-2]"},{"variable_name": "bypass_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of bypass procedure performed by the surgeon[1-2]"},{"variable_name": "bypass_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where bypass procedure was performed[1-2]"},{"variable_name": "chemo", "variable_category": "Treatment data", "variable_label":"Systemic chemotherapy classified as pre- or post-surgical"},{"variable_name": "chemort", "variable_category": "Treatment data", "variable_label":"Chemoradiation classified as pre- or post-surgical"},{"variable_name": "chir", "variable_category": "Treatment data", "variable_label":"Surgery performed"},{"variable_name": "chir_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of surgery[1-2]"},{"variable_name": "chir_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and date of surgery (days)[1-2]"},{"variable_name": "chir_opnameduur[1-2]", "variable_category": "Treatment data", "variable_label":"Length of hospital stay after surgery (days)[1-2]"},{"variable_name": "chir_rad[1-2]", "variable_category": "Treatment data", "variable_label":"Radicality of surgery[1-2]"},{"variable_name": "chir_tech[1-2]", "variable_category": "Treatment data", "variable_label":"Surgical technique[1-2]"},{"variable_name": "chir_toeval", "variable_category": "Treatment data", "variable_label":"Tumour was an incidental finding during surgery for another indication"},{"variable_name": "chir_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of surgery[1-2]"},{"variable_name": "chir_vaten[1-2]", "variable_category": "Treatment data", "variable_label":"Resection of major vessels during surgery[1-2]"},{"variable_name": "chir_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where surgery was performed[1-2]"},{"variable_name": "curatief_chir", "variable_category": "Treatment data", "variable_label":"Surgery performed with curative intent"},{"variable_name": "curatief_chir_dat", "variable_category": "Treatment data", "variable_label":"Date of first surgery with curative intent"},{"variable_name": "curatief_chir_int", "variable_category": "Treatment data", "variable_label":"Interval incidence date and date of first surgery with curative intent (days)"},{"variable_name": "destr", "variable_category": "Treatment data", "variable_label":"Tumour destruction performed"},{"variable_name": "destr_aantal", "variable_category": "Treatment data", "variable_label":"Total number of tumour destruction procedures performed"},{"variable_name": "destr_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of tumour destruction[1-2]"},{"variable_name": "destr_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval incidence date and date of tumour destruction (days)[1-2]"},{"variable_name": "destr_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of tumour destruction[1-2]"},{"variable_name": "destr_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where tumour destruction was performed[1-2]"},{"variable_name": "embolisatie", "variable_category": "Treatment data", "variable_label":"Hepatic embolisation performed"},{"variable_name": "expl_chir", "variable_category": "Treatment data", "variable_label":"Exploratory surgery performed"},{"variable_name": "expl_chir_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of exploratory surgery[1-2]"},{"variable_name": "expl_chir_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and date of exploratory surgery (days)[1-2]"},{"variable_name": "expl_chir_uitslag[1-2]", "variable_category": "Treatment data", "variable_label":"Result of exploratory surgery[1-2]"},{"variable_name": "expl_chir_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where exploratory surgery was performed[1-2]"},{"variable_name": "galafvloed", "variable_category": "Treatment data", "variable_label":"Stent or drain placed to improve biliary drainage"},{"variable_name": "galafvloed_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of procedure to improve bile drainage[1-2]"},{"variable_name": "galafvloed_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval incidence date and date of a procedure to improve biliary drainage (days)[1-2]"},{"variable_name": "galafvloed_stent_tech[1-2]", "variable_category": "Treatment data", "variable_label":"Stent technique used to improve biliary drainage[1-2]"},{"variable_name": "galafvloed_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of procedure to improve biliary drainage[1-2]"},{"variable_name": "galafvloed_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where a procedure to improve biliary drainage was performed[1-2]"},{"variable_name": "geen_ther_reden", "variable_category": "Treatment data", "variable_label":"Reason for not performing tumour-directed therapy"},{"variable_name": "geen_ther_type", "variable_category": "Treatment data", "variable_label":"Reason for no tumour-directed follow-up therapy"},{"variable_name": "lkd", "variable_category": "Treatment data", "variable_label":"Lymph node dissection performed during gallbladder resection"},{"variable_name": "lok_chemo_aantal", "variable_category": "Treatment data", "variable_label":"Total number of local chemotherapy treatments administered"},{"variable_name": "lok_chemo", "variable_category": "Treatment data", "variable_label":"Local chemotherapy performed"},{"variable_name": "lok_chemo_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of local chemotherapy[1-2]"},{"variable_name": "lok_chemo_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval incidence date and date of local chemotherapy (days)[1-2]"},{"variable_name": "lok_chemo_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of local chemotherapy[1-2]"},{"variable_name": "lok_chemo_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where local chemotherapy was administered[1-2]"},{"variable_name": "meta_chir", "variable_category": "Treatment data", "variable_label":"Surgery targeting metastases performed"},{"variable_name": "meta_rt", "variable_category": "Treatment data", "variable_label":"Radiotherapy targeting metastases performed"},{"variable_name": "prechir_intent", "variable_category": "Treatment data", "variable_label":"Preoperative systemic therapy with intent to resection"},{"variable_name": "reresectie", "variable_category": "Treatment data", "variable_label":"Re-resection performed"},{"variable_name": "reresectie_rest", "variable_category": "Treatment data", "variable_label":"Residual tumour in re-resection"},{"variable_name": "respons_dat", "variable_category": "Treatment data", "variable_label":"Date of response assessment"},{"variable_name": "respons_int", "variable_category": "Treatment data", "variable_label":"Interval incidence date and date of response assessment (days)"},{"variable_name": "respons_uitslag", "variable_category": "Treatment data", "variable_label":"Result of response assessment"},{"variable_name": "rt", "variable_category": "Treatment data", "variable_label":"Radiotherapy classified as pre- or post-surgical"},{"variable_name": "rt_aantal", "variable_category": "Treatment data", "variable_label":"Total number of radiotherapy treatments administered"},{"variable_name": "rt_start_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and start date of radiotherapy (days)[1-2]"},{"variable_name": "rt_stop_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and end date of radiotherapy (days)[1-2]"},{"variable_name": "rt_startdat[1-2]", "variable_category": "Treatment data", "variable_label":"Start date of radiotherapy[1-2]"},{"variable_name": "rt_stopdat[1-2]", "variable_category": "Treatment data", "variable_label":"End date of radiotherapy[1-2]"},{"variable_name": "rt_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of radiotherapy[1-2]"},{"variable_name": "rt_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where radiotherapy was performed[1-2]"},{"variable_name": "syst_code", "variable_category": "Treatment data", "variable_label":"Code for systemic therapy"},{"variable_name": "syst_compl", "variable_category": "Treatment data", "variable_label":"Complicated course after systemic therapy"},{"variable_name": "syst_dosisreductie", "variable_category": "Treatment data", "variable_label":"Dose reduction in systemic therapy"},{"variable_name": "syst_start_int", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and start date of systemic therapy (days)"},{"variable_name": "syst_stop_int", "variable_category": "Treatment data", "variable_label":"Interval between incidence date and end date of systemic therapy (days)"},{"variable_name": "syst_kuren", "variable_category": "Treatment data", "variable_label":"Number of systemic therapy cycles"},{"variable_name": "syst_startdat", "variable_category": "Treatment data", "variable_label":"Start date of systemic therapy"},{"variable_name": "syst_stopdat", "variable_category": "Treatment data", "variable_label":"End date of systemic therapy"},{"variable_name": "syst_zkh", "variable_category": "Treatment data", "variable_label":"Hospital where systemic therapy was administered"},{"variable_name": "target", "variable_category": "Treatment data", "variable_label":"Systemic targeted therapy classified as pre- or post-surgical"},{"variable_name": "transplant", "variable_category": "Treatment data", "variable_label":"Liver transplant performed"},{"variable_name": "transplant_wachtlijst", "variable_category": "Treatment data", "variable_label":"Patient is on the waiting list for liver transplantat"},{"variable_name": "tumgericht_ther_start_int1", "variable_category": "Treatment data", "variable_label":"Interval incidence date and start date of first tumour-directed therapy (days)"},{"variable_name": "tumgericht_ther_startdat1", "variable_category": "Treatment data", "variable_label":"Start date of first tumour-directed therapy"},{"variable_name": "tumgericht_ther", "variable_category": "Treatment data", "variable_label":"Tumour-directed therapy performed"},{"variable_name": "tumgericht_ther_zkh1", "variable_category": "Treatment data", "variable_label":"Hospital of first tumour-directed therapy"},{"variable_name": "voedselpassage", "variable_category": "Treatment data", "variable_label":"Stent or feeding stoma placed to improve food passage"},{"variable_name": "voedselpassage_dat[1-2]", "variable_category": "Treatment data", "variable_label":"Date of procedure to improve food passage[1-2]"},{"variable_name": "voedselpassage_int[1-2]", "variable_category": "Treatment data", "variable_label":"Interval incidence date and date of procedure to improve food passage (days)[1-2]"},{"variable_name": "voedselpassage_type[1-2]", "variable_category": "Treatment data", "variable_label":"Type of procedure to improve food passage[1-2]"},{"variable_name": "voedselpassage_zkh[1-2]", "variable_category": "Treatment data", "variable_label":"Hospital where a procedure to improve food passage was performed[1-2]"}];