{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T16:30:44Z","timestamp":1793377844181,"version":"4.5.0"},"reference-count":46,"publisher":"Elsevier BV","issue":"9","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T00:00:00Z","timestamp":1781222400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"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":[[2026,9]]},"DOI":"10.1016\/j.ejso.2026.111928","type":"journal-article","created":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T01:01:23Z","timestamp":1781312483000},"page":"111928","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"title":["Bridging prediction and reality: AI-based external validation of predictive models for lymph node metastasis in gastric cancer"],"prefix":"10.1016","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0521-5655","authenticated-orcid":false,"given":"L\u00facio Lara","family":"Santos","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7182-2683","authenticated-orcid":false,"given":"Anna Carolina","family":"Finamore","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9655-7601","authenticated-orcid":false,"given":"Suzanne","family":"Gisbertz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6865-8971","authenticated-orcid":false,"given":"Uberto Fumagalli","family":"Romario","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wojciech","family":"Kielan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2608-5749","authenticated-orcid":false,"given":"Ricccardo","family":"Rosati","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2059-1381","authenticated-orcid":false,"given":"Piotr","family":"Ko\u0142odziejczyk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bas","family":"Wijnhoven","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7423-713X","authenticated-orcid":false,"given":"Ines","family":"Gockel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9913-2235","authenticated-orcid":false,"given":"Simone","family":"Giacopuzzi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6455-5636","authenticated-orcid":false,"given":"Wojciech P.","family":"Polkowski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Davies","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1564-2415","authenticated-orcid":false,"given":"Paolo","family":"Morgagni","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arnulf","family":"Hoelscher","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William","family":"Allum","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Domenico","family":"D'ugo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henk","family":"Hartgrink","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1338-6160","authenticated-orcid":false,"given":"Maria","family":"Bencivenga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2319-5475","authenticated-orcid":false,"given":"Jacopo","family":"Vigan\u00f2","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9449-1810","authenticated-orcid":false,"given":"Manuel","family":"Pera","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9736-3307","authenticated-orcid":false,"given":"Daniel","family":"Reim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul M.","family":"Schneider","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"M\u00f6nig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6787-164X","authenticated-orcid":false,"given":"Giovanni","family":"De Manzoni","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2402-2178","authenticated-orcid":false,"given":"Gian Luca","family":"Baiocchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9467-2515","authenticated-orcid":false,"given":"Cl\u00e1udia","family":"Antunes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7550-8285","authenticated-orcid":false,"given":"Paulo","family":"Matos da Costa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Filipe Castro","family":"Borges","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro Carvalho","family":"Martins","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patr\u00edcia","family":"Lages","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariana","family":"Peyroteo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susana","family":"Onofre","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guillaume","family":"Piessen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johanna Wilhelmina","family":"van Sandick","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark I.","family":"van Berge Henegouwen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jessie","family":"Elliott","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mickael","family":"Chevallay","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cara","family":"Baker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefano","family":"De Pascale","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Tarasconi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ilaria","family":"Pergolini","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alberto","family":"Biondi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rossella","family":"Reddavid","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"4","key":"10.1016\/j.ejso.2026.111928_bib1","doi-asserted-by":"crossref","first-page":"559","DOI":"10.1007\/s10120-025-01613-x","article-title":"Korea, Japan, Europe, and the United States: why are guidelines for gastric cancer different?","volume":"28","author":"Stroobant","year":"2025","journal-title":"Gastric Cancer"},{"issue":"5","key":"10.1016\/j.ejso.2026.111928_bib2","doi-asserted-by":"crossref","first-page":"1048","DOI":"10.1016\/j.ejso.2020.10.013","article-title":"Lymphadenectomy for gastric cancer at European specialist centres","volume":"47","author":"Bencivenga","year":"2021","journal-title":"Eur J Surg Oncol"},{"key":"10.1016\/j.ejso.2026.111928_bib3","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.ejca.2021.03.031","article-title":"D2 dissection improves disease-specific survival in advanced gastric cancer patients: 15-year follow-up results of the Italian gastric cancer study Group D1 versus D2 randomised controlled trial","volume":"150","author":"Degiuli","year":"2021","journal-title":"Eur J Cancer"},{"issue":"6","key":"10.1016\/j.ejso.2026.111928_bib4","doi-asserted-by":"crossref","first-page":"489","DOI":"10.4251\/wjgo.v8.i6.489","article-title":"On the road to standardization of D2 lymph node dissection in a European population of patients with gastric cancer","volume":"8","author":"Yarema","year":"2016","journal-title":"World J Gastrointest Oncol"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib5","doi-asserted-by":"crossref","first-page":"875","DOI":"10.3390\/curroncol30010067","article-title":"Extended lymphadenectomy for gastric cancer in the neoadjuvant era: current status, clinical implications and contentious issues","volume":"30","author":"Marano","year":"2023","journal-title":"Curr Oncol"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib6","article-title":"The prognostic value of lymph nodes dissection number on survival of patients with lymph node-negative gastric cancer","volume":"2014","author":"Song","year":"2014","journal-title":"Gastroenterol Res Pract"},{"issue":"2","key":"10.1016\/j.ejso.2026.111928_bib7","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1245\/s10434-008-0240-4","article-title":"Positive lymph node ratio is an independent prognostic factor in gastric cancer after D2 resection regardless of the examined number of lymph nodes","volume":"16","author":"Xu","year":"2009","journal-title":"Ann Surg Oncol"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib8","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1186\/s12893-020-00714-x","article-title":"D1-plus vs D2 nodal dissection in gastric cancer: a propensity score matched comparison and review of published literature","volume":"20","author":"Lorenzon","year":"2020","journal-title":"BMC Surg"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib9","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1007\/s10120-016-0615-3","article-title":"The Italian research group for gastric cancer (GIRCG) guidelines for gastric cancer staging and treatment: 2015","volume":"20","author":"de Manzoni","year":"2017","journal-title":"Gastric Cancer"},{"issue":"4","key":"10.1016\/j.ejso.2026.111928_bib10","doi-asserted-by":"crossref","DOI":"10.1097\/00000658-199810000-00002","article-title":"Relevant prognostic factors in gastric cancer: ten-year results of the German gastric cancer study","volume":"228","author":"Siewert","year":"1998","journal-title":"Ann Surg"},{"issue":"2","key":"10.1016\/j.ejso.2026.111928_bib11","doi-asserted-by":"crossref","first-page":"246","DOI":"10.1016\/j.amjsurg.2008.05.001","article-title":"An evidence-based medicine review of lymphadenectomy extent for gastric cancer","volume":"197","author":"Yang","year":"2009","journal-title":"Am J Surg"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib12","doi-asserted-by":"crossref","DOI":"10.1080\/19932820.2021.1973761","article-title":"The efficiency of D1(+) lymphadenectomy in signet ring cell carcinoma: comparison of postoperative early and late outcomes between standard lymphadenectomy and D1(+) lymphadenectomy","volume":"16","author":"Morkavuk","year":"2021","journal-title":"Libyan J Med"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib13","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1186\/s12957-025-03787-1","article-title":"Defining optimal lymph node yield in gastrectomy: a real-world cohort analysis","volume":"23","author":"Li","year":"2025","journal-title":"World J Surg Oncol"},{"issue":"4","key":"10.1016\/j.ejso.2026.111928_bib14","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1159\/000546436","article-title":"The association between the number of retrieved lymph nodes and survival in gastric cancer surgery: a Dutch population-based study","volume":"42","author":"Ooi","year":"2025","journal-title":"Dig Surg"},{"issue":"6","key":"10.1016\/j.ejso.2026.111928_bib15","doi-asserted-by":"crossref","DOI":"10.1016\/j.ejso.2024.108318","article-title":"Challenging the dogma: stage migration or negative lymph nodes, which of them is the main player on gastric cancer prognosis?","volume":"50","author":"Costa","year":"2024","journal-title":"Eur J Surg Oncol"},{"issue":"5","key":"10.1016\/j.ejso.2026.111928_bib16","doi-asserted-by":"crossref","DOI":"10.1097\/SLA.0000000000004341","article-title":"Incidence and grading of complications after gastrectomy for cancer using the GASTRODATA registry: a European retrospective observational study","volume":"272","author":"Baiocchi","year":"2020","journal-title":"Ann Surg"},{"key":"10.1016\/j.ejso.2026.111928_bib17","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1214\/aoms\/1177730491","article-title":"On a test of whether one of two random variables is stochastically larger than the other","volume":"18","author":"Mann","year":"1947","journal-title":"Ann Math Stat"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib18","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1023\/A:1010933404324","article-title":"Random forests","volume":"45","author":"Breiman","year":"2001","journal-title":"Mach Learn"},{"key":"10.1016\/j.ejso.2026.111928_bib19","doi-asserted-by":"crossref","first-page":"559","DOI":"10.1080\/14786440109462720","article-title":"On lines and planes of closest fit to systems of points in space","volume":"2","author":"Pearson","year":"1901","journal-title":"Philosophical Magazine Series 1"},{"key":"10.1016\/j.ejso.2026.111928_bib20","series-title":"L\u2019analyse des donn\u00e9es: le\u00e7ons sur l\u2019analyse factorielle et la reconnaissance des formes, et travaux du Laboratoire de statistique de l'Universit\u00e9 de Paris VI","author":"Benz\u00e9cri","year":"1973"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib21","doi-asserted-by":"crossref","first-page":"41","DOI":"10.1093\/biomet\/70.1.41","article-title":"The central role of the propensity score in observational studies for causal effects","volume":"70","author":"Rosenbaum","year":"1983","journal-title":"Biometrika"},{"issue":"3","key":"10.1016\/j.ejso.2026.111928_bib22","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1016\/j.jclinepi.2014.06.018","article-title":"A new framework to enhance the interpretation of external validation studies of clinical prediction models","volume":"68","author":"Debray","year":"2015","journal-title":"J Clin Epidemiol"},{"issue":"13","key":"10.1016\/j.ejso.2026.111928_bib23","doi-asserted-by":"crossref","DOI":"10.3390\/cancers16132463","article-title":"International external validation of risk prediction model of 90-Day mortality after gastrectomy for cancer using machine learning","volume":"16","author":"dal Cero","year":"2024","journal-title":"Cancers (Basel)"},{"issue":"4","key":"10.1016\/j.ejso.2026.111928_bib24","doi-asserted-by":"crossref","first-page":"1031","DOI":"10.1007\/s13304-020-00757-y","article-title":"The impact of negative lymph nodes in the survival outcomes of pN+ patients following radical gastrectomy: the inverse lymph node ratio as a better score to study negative lymph nodes","volume":"72","author":"Costa","year":"2020","journal-title":"Updates Surg"},{"issue":"2","key":"10.1016\/j.ejso.2026.111928_bib25","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1007\/s13304-022-01347-w","article-title":"Prevalence of nodal metastases in the individual lymph node stations for different T-stages in gastric cancer: a systematic review","volume":"75","author":"de Jong","year":"2023","journal-title":"Updates Surg"},{"key":"10.1016\/j.ejso.2026.111928_bib26","article-title":"ASO author reflections: rethinking T1b gastric cancer: from anatomic assumptions to risk-based lymphadenectomy","author":"Fei","year":"2025","journal-title":"Ann Surg Oncol"},{"issue":"7","key":"10.1016\/j.ejso.2026.111928_bib27","doi-asserted-by":"crossref","first-page":"750","DOI":"10.1002\/jso.24227","article-title":"Optimal extent of lymphadenectomy for gastric adenocarcinoma: a 7-institution study of the U.S. gastric cancer collaborative","volume":"113","author":"Randle","year":"2016","journal-title":"J Surg Oncol"},{"issue":"3","key":"10.1016\/j.ejso.2026.111928_bib28","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1016\/j.ejso.2014.09.009","article-title":"Clinical significance of skip lymph node metastasis in gastric cancer patients","volume":"41","author":"Kim","year":"2015","journal-title":"Eur J Surg Oncol"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib29","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1186\/s12957-024-03388-4","article-title":"Optimal lymph node dissection for gastric cancer: a narrative review","volume":"22","author":"Nico","year":"2024","journal-title":"World J Surg Oncol"},{"key":"10.1016\/j.ejso.2026.111928_bib30","article-title":"Extent of lymph node dissection for adenocarcinoma of the stomach","volume":"8","author":"Mocellin","year":"2015","journal-title":"Cochrane Database Syst Rev"},{"key":"10.1016\/j.ejso.2026.111928_bib31","article-title":"Lymph node metastasis frequency and development of predictive model in T1b gastric cancer: a single-center study","author":"Fei","year":"2025","journal-title":"Ann Surg Oncol"},{"issue":"4","key":"10.1016\/j.ejso.2026.111928_bib32","doi-asserted-by":"crossref","DOI":"10.21037\/jgo-22-147","article-title":"Lymph node metastases rate of locoregional and non-locoregional lymph node stations in gastric cancer","volume":"13","author":"de Jong","year":"2022","journal-title":"J Gastrointest Oncol"},{"issue":"4","key":"10.1016\/j.ejso.2026.111928_bib33","doi-asserted-by":"crossref","DOI":"10.1097\/01.sla.0000250423.43436.e1","article-title":"The ratio between metastatic and examined lymph nodes (N Ratio) is an independent prognostic factor in gastric cancer regardless of the type of lymphadenectomy: results from an Italian multicentric study in 1853 patients","volume":"245","author":"Marchet","year":"2007","journal-title":"Ann Surg"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib34","doi-asserted-by":"crossref","first-page":"220","DOI":"10.1186\/s12893-023-02127-y","article-title":"Prognostic significance of metastatic lymph node ratio in gastric cancer: a western-center analysis","volume":"23","author":"Ergen\u00e7","year":"2023","journal-title":"BMC Surg"},{"key":"10.1016\/j.ejso.2026.111928_bib35","doi-asserted-by":"crossref","DOI":"10.3389\/fendo.2025.1434999","article-title":"Prognostic performance of examined lymph nodes, lymph node ratio, and positive lymph nodes in gastric cancer: a competing risk model study","volume":"16","author":"Gu","year":"2025","journal-title":"Front Endocrinol"},{"issue":"11","key":"10.1016\/j.ejso.2026.111928_bib36","doi-asserted-by":"crossref","first-page":"4235","DOI":"10.1245\/s10434-020-08616-1","article-title":"Association between lymph node ratio and survival in patients with pathological stage II\/III gastric cancer","volume":"27","author":"Kano","year":"2020","journal-title":"Ann Surg Oncol"},{"issue":"12","key":"10.1016\/j.ejso.2026.111928_bib37","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s00268-020-05739-0","article-title":"Accurate risk stratification of patients with node-positive gastric cancer by lymph node ratio","volume":"44","author":"Nakamura","year":"2020","journal-title":"World J Surg"},{"issue":"1","key":"10.1016\/j.ejso.2026.111928_bib38","doi-asserted-by":"crossref","first-page":"558","DOI":"10.1186\/s12885-017-3544-6","article-title":"Prognostic significance of the total number of harvested lymph nodes for lymph node-negative gastric cancer patients","volume":"17","author":"Ji","year":"2017","journal-title":"BMC Cancer"},{"issue":"13","key":"10.1016\/j.ejso.2026.111928_bib39","doi-asserted-by":"crossref","first-page":"3640","DOI":"10.3748\/wjg.v20.i13.3640","article-title":"Prognostic value of number of examined lymph nodes in patients with node-negative gastric cancer","volume":"20","author":"Jiao","year":"2014","journal-title":"World J Gastroenterol"},{"issue":"14","key":"10.1016\/j.ejso.2026.111928_bib40","doi-asserted-by":"crossref","first-page":"3967","DOI":"10.3748\/wjg.v20.i14.3967","article-title":"Clinical significance of lymph node metastasis in gastric cancer","volume":"20","author":"Deng","year":"2014","journal-title":"World J Gastroenterol"},{"issue":"3","key":"10.1016\/j.ejso.2026.111928_bib41","doi-asserted-by":"crossref","DOI":"10.3390\/cancers17030414","article-title":"Lymph node yield and lymph node ratio for prognosis of long-term survival in gastric carcinoma","volume":"17","author":"Jannasch","year":"2025","journal-title":"Cancers (Basel)"},{"issue":"3","key":"10.1016\/j.ejso.2026.111928_bib42","doi-asserted-by":"crossref","first-page":"460","DOI":"10.1007\/s11605-018-3947-y","article-title":"Prognostic value of the number of lymph nodes examined in patients with node-negative gastric cancer","volume":"23","author":"Yang","year":"2019","journal-title":"J Gastrointest Surg"},{"issue":"5","key":"10.1016\/j.ejso.2026.111928_bib43","doi-asserted-by":"crossref","DOI":"10.21037\/jgo-21-212","article-title":"Combination of the ratio between metastatic and harvested lymph nodes and negative lymph node count as a prognostic indicator in advanced gastric cancer: a retrospective cohort study","volume":"12","author":"Jiang","year":"2021","journal-title":"J Gastrointest Oncol"},{"key":"10.1016\/j.ejso.2026.111928_bib44","doi-asserted-by":"crossref","DOI":"10.1016\/j.anndiagpath.2023.152209","article-title":"Prognostic role of the number of resected and negative lymph nodes in Spanish patients with gastric cancer","volume":"67","author":"D\u00edaz del Arco","year":"2023","journal-title":"Ann Diagn Pathol"},{"issue":"3","key":"10.1016\/j.ejso.2026.111928_bib45","doi-asserted-by":"crossref","first-page":"745","DOI":"10.1245\/s10434-016-5513-8","article-title":"Increasing the number of examined lymph nodes is a prerequisite for improvement in the accurate evaluation of overall survival of node-negative gastric cancer patients","volume":"24","author":"Deng","year":"2017","journal-title":"Ann Surg Oncol"},{"issue":"3","key":"10.1016\/j.ejso.2026.111928_bib46","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1159\/000545846","article-title":"PhotoNodes protocol: a multicenter prospective study for the assessment of proper lymphadenectomy in minimally invasive gastric cancer surgery using intraoperative photographs","volume":"42","author":"Marchesi","year":"2025","journal-title":"Dig Surg"}],"container-title":["European Journal of Surgical Oncology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0748798326005470?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0748798326005470?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T15:32:31Z","timestamp":1793374351000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0748798326005470"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9]]},"references-count":46,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2026,9]]}},"alternative-id":["S0748798326005470"],"URL":"https:\/\/doi.org\/10.1016\/j.ejso.2026.111928","relation":{},"ISSN":["0748-7983"],"issn-type":[{"value":"0748-7983","type":"print"}],"subject":[],"published":{"date-parts":[[2026,9]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Bridging prediction and reality: AI-based external validation of predictive models for lymph node metastasis in gastric cancer","name":"articletitle","label":"Article Title"},{"value":"European Journal of Surgical Oncology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ejso.2026.111928","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Author(s). Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}],"article-number":"111928"}}