{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,10]],"date-time":"2024-07-10T23:06:20Z","timestamp":1720652780575},"reference-count":11,"publisher":"Ovid Technologies (Wolters Kluwer Health)","license":[{"start":{"date-parts":[[2018,6,1]],"date-time":"2018-06-01T00:00:00Z","timestamp":1527811200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,6,1]],"date-time":"2020-06-01T00:00:00Z","timestamp":1590969600000},"content-version":"vor","delay-in-days":731,"URL":"http:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":["clinicalkey.jp","clinicalkey.com","clinicalkey.es","clinicalkey.fr","clinicalkey.com.au","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Surgery"],"published-print":{"date-parts":[[2018,6]]},"DOI":"10.1016\/j.ijsu.2018.04.009","type":"journal-article","created":{"date-parts":[[2018,4,11]],"date-time":"2018-04-11T06:50:04Z","timestamp":1523429404000},"page":"308-309","update-policy":"http:\/\/dx.doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"PA","title":["Reply letter to: Letter to the editor on the article \" Adjuvant systemic therapy and postoperative outcomes after resection of node positive gallbladder cancer\""],"prefix":"10.1097","volume":"54","member":"276","reference":[{"key":"10.1016\/j.ijsu.2018.04.009_bib1","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1016\/j.ijsu.2018.02.052","article-title":"Adjuvant systemic therapy after resection of node positive gallbladder cancer: Time for a well-designed trial? (Results of a US-national retrospective cohort study)","volume":"52","author":"Bergquist","year":"2018","journal-title":"Int. J. Surg."},{"issue":"1","key":"10.1016\/j.ijsu.2018.04.009_bib2","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"},{"key":"10.1016\/j.ijsu.2018.04.009_bib3","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1186\/s13054-015-0786-z","article-title":"Propensity matching cannot substitute for randomization in albumin studies","volume":"19","author":"Wiedermann","year":"2015","journal-title":"Crit. Care"},{"key":"10.1016\/j.ijsu.2018.04.009_bib4","series-title":"Why Propensity Scores Should Not Be Used for Matching","author":"King","year":"2016"},{"key":"10.1016\/j.ijsu.2018.04.009_bib5","series-title":"The Uses and Abuses of Matching in Political Science","author":"Miller","year":"2016"},{"issue":"9","key":"10.1016\/j.ijsu.2018.04.009_bib6","doi-asserted-by":"crossref","first-page":"2024","DOI":"10.1097\/CCM.0000000000001175","article-title":"Why the propensity for propensity scores?","volume":"43","author":"Day","year":"2015","journal-title":"Crit. Care Med."},{"issue":"7","key":"10.1016\/j.ijsu.2018.04.009_bib7","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1016\/j.jclinepi.2015.01.002","article-title":"Propensity score matching and randomization","volume":"68","author":"Mnatzaganian","year":"2015","journal-title":"J. Clin. Epidemiol."},{"key":"10.1016\/j.ijsu.2018.04.009_bib8","doi-asserted-by":"crossref","DOI":"10.1016\/j.surg.2016.05.011","article-title":"How matching may impact interpretation: comments on \"A matched-cohort analysis of 192 pancreatic anaplastic carcinomas and 960 pancreatic adenocarcinomas: a 13-year North American experience using the National Cancer Data Base (NCDB)\"","author":"Bergquist","year":"2016","journal-title":"Surgery"},{"issue":"14","key":"10.1016\/j.ijsu.2018.04.009_bib9","doi-asserted-by":"crossref","DOI":"10.1200\/JCO.2016.71.2315","article-title":"Patient selection for neoadjuvant therapy in early-stage pancreatic cancer","volume":"35","author":"Bergquist","year":"2017","journal-title":"J. Clin. Oncol."},{"issue":"4","key":"10.1016\/j.ijsu.2018.04.009_bib10","doi-asserted-by":"crossref","DOI":"10.1002\/jso.24381","article-title":"Implications of CA19-9 elevation for survival, staging, and treatment sequencing in intrahepatic cholangiocarcinoma: a national cohort analysis","volume":"114","author":"Bergquist","year":"2016","journal-title":"J. Surg. Oncol."},{"key":"10.1016\/j.ijsu.2018.04.009_bib11","doi-asserted-by":"crossref","DOI":"10.1016\/j.jamcollsurg.2016.02.009","article-title":"Carbohydrate antigen 19-9 elevation in anatomically resectable, early-stage pancreatic cancer is independently associated with decreased overall survival and an indication for neoadjuvant therapy: a national cancer database study","author":"Bergquist","year":"2016","journal-title":"J. Am. Coll. Surg."}],"container-title":["International Journal of Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1743919118306940?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1743919118306940?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2023,2,22]],"date-time":"2023-02-22T16:02:20Z","timestamp":1677081740000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1743919118306940"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,6]]},"references-count":11,"alternative-id":["S1743919118306940"],"URL":"https:\/\/doi.org\/10.1016\/j.ijsu.2018.04.009","relation":{},"ISSN":["1743-9191"],"issn-type":[{"value":"1743-9191","type":"print"}],"subject":[],"published":{"date-parts":[[2018,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Reply letter to: Letter to the editor on the article \" Adjuvant systemic therapy and postoperative outcomes after resection of node positive gallbladder cancer\"","name":"articletitle","label":"Article Title"},{"value":"International Journal of Surgery","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ijsu.2018.04.009","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"simple-article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2018 IJS Publishing Group Ltd. Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}]}}