{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T12:37:51Z","timestamp":1787315871536,"version":"build-2736575974"},"reference-count":45,"publisher":"Elsevier BV","issue":"9","license":[{"start":{"date-parts":[[2020,9,1]],"date-time":"2020-09-01T00:00:00Z","timestamp":1598918400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,9,1]],"date-time":"2020-09-01T00:00:00Z","timestamp":1598918400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","ejso.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Surgical Oncology"],"published-print":{"date-parts":[[2020,9]]},"DOI":"10.1016\/j.ejso.2020.04.011","type":"journal-article","created":{"date-parts":[[2020,5,25]],"date-time":"2020-05-25T11:26:06Z","timestamp":1590405966000},"page":"1717-1726","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":29,"title":["Development and external validation of a prediction model for survival in patients with resected ampullary adenocarcinoma"],"prefix":"10.1016","volume":"46","author":[{"given":"Alma L.","family":"Moekotte","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stijn","family":"van Roessel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe","family":"Malleo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rushda","family":"Rajak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brett L.","family":"Ecker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martina","family":"Fontana","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9659-1260","authenticated-orcid":false,"given":"Ho-Seong","family":"Han","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7752-7538","authenticated-orcid":false,"given":"Mohamed","family":"Rabie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keith J.","family":"Roberts","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Khalid","family":"Khalil","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven A.","family":"White","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stuart","family":"Robinson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Asif","family":"Halimi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"Zarantonello","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe K.","family":"Fusai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George","family":"Gradinariu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adnan","family":"Alseidi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morgan","family":"Bonds","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6134-2096","authenticated-orcid":false,"given":"Stephan","family":"Dreyer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nigel B.","family":"Jamieson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicholas","family":"Mowbray","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bilal","family":"Al-Sarireh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vasileios K.","family":"Mavroeidis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zahir","family":"Soonawalla","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niccol\u00f2","family":"Napoli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7505-5896","authenticated-orcid":false,"given":"Ugo","family":"Boggi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tara S.","family":"Kent","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William E.","family":"Fisher","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chung N.","family":"Tang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louisa","family":"Bolm","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael G.","family":"House","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary E.","family":"Dillhoff","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen W.","family":"Behrman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masafumi","family":"Nakamura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chad G.","family":"Ball","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam C.","family":"Berger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John D.","family":"Christein","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amer H.","family":"Zureikat","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronald R.","family":"Salem","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charles M.","family":"Vollmer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"Salvia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc G.","family":"Besselink","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"Abu Hilal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ra'ed","family":"Aljarrah","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Courtney","family":"Barrows","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martha Navarro","family":"Cagigas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric C.H.","family":"Lai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulrich","family":"Wellner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Aversa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paxton V.","family":"Dickson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takao","family":"Ohtsuka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elijah","family":"Dixon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stacy","family":"Kowalski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mollie","family":"Freedman-Weiss","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.ejso.2020.04.011_bib1","doi-asserted-by":"crossref","first-page":"598","DOI":"10.1002\/jso.21374","article-title":"Cancers of the ampulla of vater: demographics, morphology, and survival based on 5,625 cases from the SEER Program","volume":"100","author":"Albores-Saavedra","year":"2009","journal-title":"J\u00a0Surg Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib2","first-page":"71","article-title":"Cancer statistics","volume":"58","author":"Jemal","year":"2008","journal-title":"CA Cancer J Clin. 2008"},{"key":"10.1016\/j.ejso.2020.04.011_bib3","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1097\/00000658-199807000-00013","article-title":"Factors predictive of survival in ampullary carcinoma","volume":"228","author":"Howe","year":"1998","journal-title":"Ann Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib4","series-title":"Histology for pathologists","article-title":"Vaterian System and minor papilla","author":"Klimstra","year":"2007"},{"key":"10.1016\/j.ejso.2020.04.011_bib5","doi-asserted-by":"crossref","first-page":"1592","DOI":"10.1097\/PAS.0b013e31826399d8","article-title":"Ampullary region carcinomas","volume":"36","author":"Adsay","year":"2012","journal-title":"Am J Surg Pathol"},{"key":"10.1016\/j.ejso.2020.04.011_bib6","doi-asserted-by":"crossref","first-page":"112","DOI":"10.14694\/EdBook_AM.2014.34.112","article-title":"Ampullary cancer: an overview","volume":"34","author":"Ahn","year":"2014","journal-title":"Am Soc Clin Oncol Educ B"},{"key":"10.1016\/j.ejso.2020.04.011_bib7","doi-asserted-by":"crossref","first-page":"764","DOI":"10.1016\/j.surg.2006.04.006","article-title":"Resected periampullary adenocarcinoma: 5-year survivors and their 6- to 10-year follow-up","volume":"140","author":"Riall","year":"2006","journal-title":"Surgery"},{"key":"10.1016\/j.ejso.2020.04.011_bib8","doi-asserted-by":"crossref","first-page":"10144","DOI":"10.3748\/wjg.v20.i29.10144","article-title":"Trends in incidence and management of cancer of the ampulla of Vater","volume":"20","author":"Rostain","year":"2014","journal-title":"World J Gastroenterol"},{"key":"10.1016\/j.ejso.2020.04.011_bib9","doi-asserted-by":"crossref","first-page":"436","DOI":"10.1016\/j.ijrobp.2008.11.067","article-title":"Role of adjuvant chemoradiotherapy for ampulla of vater cancer","volume":"75","author":"Kim","year":"2009","journal-title":"Int J Radiat Oncol Biol Phys"},{"key":"10.1016\/j.ejso.2020.04.011_bib10","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/1748-717X-6-126","article-title":"Eluation of adjuvant chemoradiation therapy for ampullary adenocarcinoma: the Johns Hopkins Hospital - mayo Clinic collaborative study","volume":"6","author":"Narang","year":"2011","journal-title":"Radiat Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib11","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1001\/archsurg.140.6.529","article-title":"Pancreaticoduodenectomy is curative in the majority of patients with node-negative ampullary cancer","volume":"140","author":"Brown","year":"2005","journal-title":"Arch Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib12","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s12893-015-0019-z","article-title":"Long-term prognosis of surgical treatment for early ampullary cancers and implications for local ampullectomy Hepato-biliary-pancreatic surgery","volume":"15","author":"Song","year":"2015","journal-title":"BMC Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib13","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.jamcollsurg.2008.01.028","article-title":"Tumors of the ampulla of vater: histopathologic classification and predictors of survival","volume":"207","author":"Carter","year":"2008","journal-title":"J\u00a0Am Coll Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib14","doi-asserted-by":"crossref","first-page":"1348","DOI":"10.1200\/JCO.2012.46.8868","article-title":"Histomolecular phenotypes and outcome in adenocarcinoma of the ampulla of vater","volume":"31","author":"Chang","year":"2013","journal-title":"J\u00a0Clin Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib15","doi-asserted-by":"crossref","first-page":"941","DOI":"10.1001\/archsurg.138.9.941","article-title":"Improved survival for adenocarcinoma of the ampulla of vater: fifty-five consecutive resections","volume":"138","author":"Duffy","year":"2003","journal-title":"Arch Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib16","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1007\/s00268-006-0213-3","article-title":"Carcinoma of the ampulla of vater: factors influencing long-term survival of 127 patients with resection","volume":"31","author":"Qiao","year":"2007","journal-title":"World J Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib17","doi-asserted-by":"crossref","first-page":"791","DOI":"10.1016\/j.ejso.2011.06.008","article-title":"Predictors of clinical outcomes of resected ampullary adenocarcinoma: a single-institution experience","volume":"37","author":"Lazaryan","year":"2011","journal-title":"Eur J Surg Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib18","doi-asserted-by":"crossref","first-page":"170","DOI":"10.1002\/jso.24281","article-title":"Clinicopathologic and survival analysis of resected ampullary adenocarcinoma","volume":"114","author":"Doepker","year":"2016","journal-title":"J\u00a0Surg Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib19","doi-asserted-by":"crossref","unstructured":"Moekotte AL, Lof S, Van Roessel S, et\u00a0al. Histopathologic predictors of survival and recurrence in resected ampullary adenocarcinoma. Ann Surg. Epub ahead of print 2019. DOI: 10.1097\/SLA.0000000000003177.","DOI":"10.1016\/j.hpb.2019.03.044"},{"key":"10.1016\/j.ejso.2020.04.011_bib20","doi-asserted-by":"crossref","first-page":"706","DOI":"10.1001\/jamasurg.2019.1170","article-title":"Role of adjuvant multimodality therapy after curative-intent resection of ampullary carcinoma","volume":"154","author":"Ecker","year":"2019","journal-title":"JAMA Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib21","author":"Health Research Authority"},{"key":"10.1016\/j.ejso.2020.04.011_bib22","series-title":"WHO classification of tumors of the digestive System","author":"Bosman","year":"2010"},{"key":"10.1016\/j.ejso.2020.04.011_bib23","series-title":"Dataset for the histopathological reporting of carcinomas of the pancreas, ampulla of Vater and common bile duct","author":"Campbell","year":"2017"},{"key":"10.1016\/j.ejso.2020.04.011_bib24","author":"Kakar"},{"key":"10.1016\/j.ejso.2020.04.011_bib25","series-title":"AJCC cancer staging manual","author":"Amin","year":"2016"},{"key":"10.1016\/j.ejso.2020.04.011_bib26","doi-asserted-by":"crossref","first-page":"51","DOI":"10.7326\/M18-1377","article-title":"PROBAST: a tool to assess the risk of bias and applicability of prediction model studies","volume":"170","author":"Moons","year":"2019","journal-title":"Ann Intern Med"},{"key":"10.1016\/j.ejso.2020.04.011_bib27","doi-asserted-by":"crossref","first-page":"g7594","DOI":"10.1136\/bmj.g7594","article-title":"Transparent reporting of a multivariable prediction model for individual prognosis or diagnosis (TRIPOD): the TRIPOD Statement","volume":"350","author":"Collins","year":"2015","journal-title":"BMJ"},{"key":"10.1016\/j.ejso.2020.04.011_bib28","doi-asserted-by":"crossref","first-page":"385","DOI":"10.1002\/(SICI)1097-0258(19970228)16:4<385::AID-SIM380>3.0.CO;2-3","article-title":"The lasso method for variable selection in the Cox model","volume":"16","author":"Tibshirani","year":"1997","journal-title":"Stat Med"},{"key":"10.1016\/j.ejso.2020.04.011_bib29","series-title":"Flexible imputation of missing data","author":"Van Buuren","year":"2018"},{"key":"10.1016\/j.ejso.2020.04.011_bib30","doi-asserted-by":"crossref","first-page":"1105","DOI":"10.1002\/sim.4154","article-title":"On the C-statistics for evaluating overall adequacy of risk prediction procedures with censored survival data","volume":"30","author":"Uno","year":"2011","journal-title":"Stat Med"},{"key":"10.1016\/j.ejso.2020.04.011_bib31","doi-asserted-by":"crossref","unstructured":"Kent DM, Steyerberg E, Van Klaveren D. Personalized evidence based medicine: predictive approaches to heterogeneous treatment effects. BMJ.;363 . Epub ahead of print 2018. DOI: 10.1136\/bmj.k4245.","DOI":"10.1136\/bmj.k4245"},{"key":"10.1016\/j.ejso.2020.04.011_bib32","doi-asserted-by":"crossref","first-page":"1079","DOI":"10.1245\/s10434-018-07115-8","article-title":"Prognostic nomogram for disease-specific survival in patients with non-metastatic ampullary carcinoma after surgery","volume":"26","author":"Li","year":"2019","journal-title":"Ann Surg Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib33","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s12885-018-4240-x","article-title":"Nomograms predict long-term survival for patients with periampullary adenocarcinoma after pancreatoduodenectomy","volume":"18","author":"He","year":"2018","journal-title":"BMC Canc"},{"key":"10.1016\/j.ejso.2020.04.011_bib34","doi-asserted-by":"crossref","first-page":"332","DOI":"10.1016\/j.hpb.2015.11.008","article-title":"A\u00a0model to predict survival following pancreaticoduodenectomy for malignancy based on tumour site, stage and lymph node ratio","volume":"18","author":"Dasari","year":"2016","journal-title":"HPB"},{"key":"10.1016\/j.ejso.2020.04.011_bib35","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1002\/bjs.9709","article-title":"Impact of lymph node ratio on survival in patients with pancreatic and periampullary cancer","volume":"102","author":"Tol","year":"2015","journal-title":"Br J Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib36","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1097\/01.sla.0000133125.85489.07","article-title":"Prognostic nomogram for patients undergoing resection for adenocarcinoma of the pancreas","volume":"240","author":"Brennan","year":"2004","journal-title":"Ann Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib37","first-page":"6313","article-title":"A\u00a0prognostic nomogram for disease-specific survival in patients with pancreatic ductal adenocarcinoma of the head of the pancreas following pancreaticoduodenectomy","volume":"24","author":"Li","year":"2018","journal-title":"Med Sci Mon Int Med J Exp Clin Res"},{"key":"10.1016\/j.ejso.2020.04.011_bib38","doi-asserted-by":"crossref","unstructured":"Dreyer SB, Pinese \u00c3M, Jamieson NB, et\u00a0al. Precision oncology in surgery patient selection for operable pancreatic cancer . Epub ahead of print 2018. DOI: 10.1097\/SLA.0000000000003143.","DOI":"10.1016\/j.ejso.2018.10.024"},{"key":"10.1016\/j.ejso.2020.04.011_bib39","first-page":"1","article-title":"Multi-institutional development and external validation of a nomogram to predict recurrence after curative resection of pancreatic neuroendocrine tumors","volume":"XX","author":"Pulvirenti","year":"2019","journal-title":"Ann Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib40","doi-asserted-by":"crossref","unstructured":"Strijker M, Chen JW, Mungroop TH, et\u00a0al. Systematic review of clinical prediction models for survival after surgery for resectable pancreatic cancer. Br J Surg. . Epub ahead of print 2019. DOI: 10.1002\/bjs.11111.","DOI":"10.1016\/j.hpb.2020.04.144"},{"key":"10.1016\/j.ejso.2020.04.011_bib41","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1097\/01.sla.0000167853.04171.bb","article-title":"Clinicopathologic analysis of early ampullary cancers with a focus on the feasibility of ampullectomy","volume":"242","author":"Yoon","year":"2005","journal-title":"Ann Surg"},{"key":"10.1016\/j.ejso.2020.04.011_bib42","doi-asserted-by":"crossref","first-page":"1820","DOI":"10.1245\/s10434-008-9886-1","article-title":"Survival after resection of ampullary carcinoma: a national population-based study","volume":"15","author":"O'Connell","year":"2008","journal-title":"Ann Surg Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib43","doi-asserted-by":"crossref","first-page":"1364","DOI":"10.1200\/JCO.2007.12.9791","article-title":"How to build and interpret a nomogram for cancer prognosis","volume":"26","author":"Iasonos","year":"2008","journal-title":"J\u00a0Clin Oncol"},{"key":"10.1016\/j.ejso.2020.04.011_bib44","doi-asserted-by":"crossref","first-page":"1366","DOI":"10.1016\/j.jclinepi.2015.02.012","article-title":"Estimates of absolute treatment benefit for individual patients required careful modelling of statistical interactions","volume":"68","author":"van Klaveren","year":"2015","journal-title":"J\u00a0Clin Epidemiol"},{"key":"10.1016\/j.ejso.2020.04.011_bib45","doi-asserted-by":"crossref","first-page":"201","DOI":"10.7326\/0003-4819-144-3-200602070-00009","article-title":"Translating clinical research into clinical practice: impact of using prediction rules to make decisions","volume":"144","author":"Reilly","year":"2006","journal-title":"Ann Intern Med"}],"container-title":["European Journal of Surgical Oncology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S074879832030408X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S074879832030408X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:34:59Z","timestamp":1760060099000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S074879832030408X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,9]]},"references-count":45,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2020,9]]}},"alternative-id":["S074879832030408X"],"URL":"https:\/\/doi.org\/10.1016\/j.ejso.2020.04.011","relation":{},"ISSN":["0748-7983"],"issn-type":[{"value":"0748-7983","type":"print"}],"subject":[],"published":{"date-parts":[[2020,9]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Development and external validation of a prediction model for survival in patients with resected ampullary adenocarcinoma","name":"articletitle","label":"Article Title"},{"value":"European Journal of Surgical Oncology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ejso.2020.04.011","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2020 Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}]}}