{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T13:49:39Z","timestamp":1775742579977,"version":"3.50.1"},"reference-count":0,"publisher":"Elsevier BV","issue":"5","license":[{"start":{"date-parts":[[1998,11,1]],"date-time":"1998-11-01T00:00:00Z","timestamp":909878400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2017,12,4]],"date-time":"2017-12-04T00:00:00Z","timestamp":1512345600000},"content-version":"vor","delay-in-days":6973,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["British Journal of Anaesthesia"],"published-print":{"date-parts":[[1998,11]]},"DOI":"10.1093\/bja\/81.5.737","type":"journal-article","created":{"date-parts":[[2012,4,18]],"date-time":"2012-04-18T20:01:44Z","timestamp":1334779304000},"page":"737-741","source":"Crossref","is-referenced-by-count":64,"title":["Tramadol or morphine administered during operation: a study of immediate postoperative effects after abdominal hysterectomy"],"prefix":"10.1016","volume":"81","author":[{"given":"J F","family":"Coetzee","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H","family":"van Loggerenberg","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","container-title":["British Journal of Anaesthesia"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0007091217395107?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0007091217395107?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/academic.oup.com\/bja\/article-pdf\/81\/5\/737\/18262188\/737.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,11,23]],"date-time":"2018-11-23T20:52:26Z","timestamp":1543006346000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0007091217395107"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998,11]]},"references-count":0,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1998,11]]}},"alternative-id":["S0007091217395107"],"URL":"https:\/\/doi.org\/10.1093\/bja\/81.5.737","relation":{},"ISSN":["0007-0912"],"issn-type":[{"value":"0007-0912","type":"print"}],"subject":[],"published":{"date-parts":[[1998,11]]}}}