{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T09:57:14Z","timestamp":1777111034700,"version":"3.51.4"},"reference-count":11,"publisher":"Elsevier BV","issue":"1","license":[{"start":{"date-parts":[[2007,7,1]],"date-time":"2007-07-01T00:00:00Z","timestamp":1183248000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2007,7,1]],"date-time":"2007-07-01T00:00:00Z","timestamp":1183248000000},"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","ejog.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Obstetrics & Gynecology and Reproductive Biology"],"published-print":{"date-parts":[[2007,7]]},"DOI":"10.1016\/j.ejogrb.2006.07.038","type":"journal-article","created":{"date-parts":[[2006,9,2]],"date-time":"2006-09-02T07:22:32Z","timestamp":1157181752000},"page":"30-33","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":8,"title":["Umbilical cord plasma concentrations of free morphine following single-dose diamorphine analgesia and their relationship to dose-delivery time interval, Apgar scores and neonatal respiration"],"prefix":"10.1016","volume":"133","author":[{"given":"N.","family":"Rawal","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.J.","family":"Tomlinson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.J.","family":"Gibson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.M.T.","family":"Sheehan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ejogrb.2006.07.038_bib1","doi-asserted-by":"crossref","first-page":"1181","DOI":"10.1111\/j.1471-0528.1999.tb08145.x","article-title":"Intramuscular opioid for maternal pain relief in labour: a randomised controlled trial comparing Pethidine with Diamorphine","volume":"106","author":"Fairlie","year":"1999","journal-title":"Br J Obstet Gynaecol"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib2","doi-asserted-by":"crossref","first-page":"718","DOI":"10.1111\/j.1471-0528.1981.tb01271.x","article-title":"Effect of intramuscular pethedine on fetal heart rate variability during labour","volume":"88","author":"Kariniemi","year":"1981","journal-title":"Br J Obstet Gynaecol"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib3","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1097\/00000542-197402000-00004","article-title":"Obstetric meperidine usage and assessment of neonatal status","volume":"40","author":"Brackbill","year":"1974","journal-title":"Anesthesiology"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib4","doi-asserted-by":"crossref","first-page":"980","DOI":"10.1016\/S0002-9378(43)91007-5","article-title":"The use of heroin (diacetyl-morphine) in labour","volume":"45","author":"Lund","year":"1943","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib5","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1046\/j.1365-2125.1996.03539.x","article-title":"Morphine, morphine-6-glucuronide and morphine-3-glucuronide pharmacokinetics in newborn infants receiving Diamorphine infusions","volume":"41","author":"Barrett","year":"1996","journal-title":"Br J Clin Pharmacol"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib6","doi-asserted-by":"crossref","first-page":"39","DOI":"10.3109\/03602537508993748","article-title":"The metabolism of morphine and heroin in man","volume":"4","author":"Boerner","year":"1975","journal-title":"Drug Metabol Rev"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib7","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1093\/bja\/66.1.103","article-title":"Disposition of morphine-6-glucuronide and morphine in healthy volunteers","volume":"66","author":"Hanna","year":"1991","journal-title":"Br J Anaesth"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib8","first-page":"515","article-title":"The analgesic activity of morphine-6-glucuronide","volume":"27","author":"Osborne","year":"1992","journal-title":"Br J Clin Pharmacol"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib9","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1016\/0304-3959(91)90170-3","article-title":"Morphine-6-glucuronide: effect on ventilation in normal volunteers","volume":"45","author":"Peat","year":"1991","journal-title":"Pain"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib10","doi-asserted-by":"crossref","first-page":"579","DOI":"10.1016\/0024-3205(90)90619-3","article-title":"Morphine-3-glucuronide-a potent antagonist of morphine analgesia","volume":"47","author":"Smith","year":"1990","journal-title":"Life Sci"},{"key":"10.1016\/j.ejogrb.2006.07.038_bib11","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/0014-2999(91)90199-Z","article-title":"Antinociceptive and ventilatory effects of the morphine metabolites: morphine-6-glucuronide and morphine-3-glucuronide","volume":"193","author":"Gong","year":"1991","journal-title":"Eur J Pharmacol"}],"container-title":["European Journal of Obstetrics & Gynecology and Reproductive Biology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211506004581?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211506004581?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,4]],"date-time":"2025-10-04T05:16:53Z","timestamp":1759555013000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0301211506004581"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,7]]},"references-count":11,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2007,7]]}},"alternative-id":["S0301211506004581"],"URL":"https:\/\/doi.org\/10.1016\/j.ejogrb.2006.07.038","relation":{},"ISSN":["0301-2115"],"issn-type":[{"value":"0301-2115","type":"print"}],"subject":[],"published":{"date-parts":[[2007,7]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Umbilical cord plasma concentrations of free morphine following single-dose diamorphine analgesia and their relationship to dose-delivery time interval, Apgar scores and neonatal respiration","name":"articletitle","label":"Article Title"},{"value":"European Journal of Obstetrics & Gynecology and Reproductive Biology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ejogrb.2006.07.038","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2006 Elsevier Ireland Ltd. All rights reserved.","name":"copyright","label":"Copyright"}]}}