{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T11:16:07Z","timestamp":1790853367092,"version":"4.1.0"},"reference-count":14,"publisher":"Korean Society of Obstetrics and Gynecology","issue":"1","license":[{"start":{"date-parts":[[2018,1,1]],"date-time":"2018-01-01T00:00:00Z","timestamp":1514764800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100003569","name":"Ministry of Food and Drug Safety","doi-asserted-by":"publisher","award":["14172MFDS178"],"award-info":[{"award-number":["14172MFDS178"]}],"id":[{"id":"10.13039\/501100003569","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["synapse.koreamed.org"],"crossmark-restriction":false},"short-container-title":["Obstet Gynecol Sci"],"published-print":{"date-parts":[[2018]]},"DOI":"10.5468\/ogs.2018.61.1.63","type":"journal-article","created":{"date-parts":[[2018,1,16]],"date-time":"2018-01-16T00:58:56Z","timestamp":1516064336000},"page":"63","update-policy":"https:\/\/doi.org\/10.5468\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Efficacy and side effect of ritodrine and magnesium sulfate in threatened preterm labor"],"prefix":"10.5468","volume":"61","author":[{"given":"Min Kyoung","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seung Mi","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jung Won","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"So Yeon","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hye Gyeong","family":"Jeong","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sun Min","family":"Kim","sequence":"additional","affiliation":[{"name":"Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chan Wook","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jong Kwan","family":"Jun","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seo-kyung","family":"Hahn","sequence":"additional","affiliation":[{"name":"Medical Statistics Lab, Department of Medicine, Seoul National University Hospital, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5246-0477","authenticated-orcid":false,"given":"Joong Shin","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3425","reference":[{"key":"10.5468\/ogs.2018.61.1.63_ref1","first-page":"1165","volume":"44","author":"Kim","year":"2001","journal-title":"Korean J Obstet Gynecol"},{"key":"10.5468\/ogs.2018.61.1.63_ref2","doi-asserted-by":"crossref","first-page":"585","DOI":"10.1517\/14656566.2014.880110","volume":"15","author":"J\u00f8rgensen","year":"2014","journal-title":"Expert Opin Pharmacother"},{"key":"10.5468\/ogs.2018.61.1.63_ref3","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1056\/NEJM199207303270503","volume":"327","author":"","year":"1992","journal-title":"N Engl J Med"},{"key":"10.5468\/ogs.2018.61.1.63_ref4","doi-asserted-by":"crossref","first-page":"371","DOI":"10.3109\/14767058.2014.918095","volume":"28","author":"Haram","year":"2015","journal-title":"J Matern Fetal Neonatal Med"},{"key":"10.5468\/ogs.2018.61.1.63_ref5","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1097\/AOG.0b013e3181d4ffa5","volume":"115","author":"","year":"2010","journal-title":"Obstet Gynecol"},{"key":"10.5468\/ogs.2018.61.1.63_ref6","doi-asserted-by":"crossref","first-page":"684","DOI":"10.3109\/01443615.2014.930094","volume":"34","author":"Driul","year":"2014","journal-title":"J Obstet Gynaecol"},{"key":"10.5468\/ogs.2018.61.1.63_ref7","doi-asserted-by":"crossref","first-page":"1153","DOI":"10.1517\/14656566.9.7.1153","volume":"9","author":"Kam","year":"2008","journal-title":"Expert Opin Pharmacother"},{"key":"10.5468\/ogs.2018.61.1.63_ref8","doi-asserted-by":"crossref","first-page":"103","DOI":"10.3109\/10903127.2014.942475","volume":"19","author":"McCubbin","year":"2015","journal-title":"Prehosp Emerg Care"},{"key":"10.5468\/ogs.2018.61.1.63_ref9","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1126\/science.1251816","volume":"345","author":"Romero","year":"2014","journal-title":"Science"},{"key":"10.5468\/ogs.2018.61.1.63_ref10","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1097\/00006250-199203000-00005","volume":"79","author":"Watts","year":"1992","journal-title":"Obstet Gynecol"},{"key":"10.5468\/ogs.2018.61.1.63_ref11","doi-asserted-by":"crossref","first-page":"336","DOI":"10.1016\/0002-9378(89)90515-2","volume":"161","author":"Romero","year":"1989","journal-title":"Am J Obstet Gynecol"},{"key":"10.5468\/ogs.2018.61.1.63_ref12","doi-asserted-by":"crossref","first-page":"787","DOI":"10.1517\/14656566.2014.889684","volume":"15","author":"van Vliet","year":"2014","journal-title":"Expert Opin Pharmacother"},{"key":"10.5468\/ogs.2018.61.1.63_ref13","doi-asserted-by":"crossref","first-page":"203","DOI":"10.5468\/ogs.2015.58.3.203","volume":"58","author":"Hwang","year":"2015","journal-title":"Obstet Gynecol Sci"},{"key":"10.5468\/ogs.2018.61.1.63_ref14","first-page":"611","volume":"78","author":"Holcomb","year":"1991","journal-title":"Obstet Gynecol"}],"container-title":["Obstetrics & Gynecology Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/synapse.koreamed.org\/pdf\/10.5468\/ogs.2018.61.1.63","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/synapse.koreamed.org\/DOIx.php?id=10.5468\/ogs.2018.61.1.63","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/synapse.koreamed.org\/DOIx.php?id=10.5468\/ogs.2018.61.1.63","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,6,11]],"date-time":"2020-06-11T08:48:40Z","timestamp":1591865320000},"score":1,"resource":{"primary":{"URL":"http:\/\/ogscience.org\/journal\/view.php?doi=10.5468\/ogs.2018.61.1.63"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018]]},"references-count":14,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2018]]}},"URL":"https:\/\/doi.org\/10.5468\/ogs.2018.61.1.63","relation":{},"ISSN":["2287-8572","2287-8580"],"issn-type":[{"value":"2287-8572","type":"print"},{"value":"2287-8580","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018]]},"assertion":[{"value":"https:\/\/synapse.koreamed.org\/DOIx.php?id=10.5468\/ogs.2018.61.1.63","URL":"https:\/\/synapse.koreamed.org\/DOIx.php?id=10.5468\/ogs.2018.61.1.63","name":"synapse","label":"Synapse","group":{"name":"multiple_resolution","label":"Full text available at:"}},{"value":"https:\/\/ogscience.org\/DOIx.php?id=10.5468\/ogs.2018.61.1.63","URL":"https:\/\/ogscience.org\/DOIx.php?id=10.5468\/ogs.2018.61.1.63","name":"the_journal","label":"the Journal","group":{"name":"multiple_resolution","label":"Full text available at:"}},{"value":"2017-04-24","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-07-27","name":"revised","label":"Revised","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-07-27","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2017-12-27","name":"published_online","label":"Published online","group":{"name":"publication_history","label":"Publication History"}},{"value":"Copyright \u00a9 2018 Korean Society of Obstetrics and Gynecology","name":"copyright","label":"Copyright","group":{"name":"Copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"Articles published in Obstet Gynecol Sci are open-access, distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.","name":"license","label":"License","explanation":{"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"},"group":{"name":"Copyright_and_licensing","label":"Copyright and Licensing"}}]}}