{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T15:25:08Z","timestamp":1765293908945},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Human Reproduction"],"published-print":{"date-parts":[[1998,1,1]]},"DOI":"10.1093\/humrep\/13.1.220","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T22:22:25Z","timestamp":1027722145000},"page":"220-223","source":"Crossref","is-referenced-by-count":9,"title":["Second-trimester maternal serum screening for Down's syndrome: free beta-human chorionic gonadotrophin (HCG) and alpha-fetoprotein, with or without unconjugated oestriol, compared with total HCG, alpha- fetoprotein and unconjugated oestriol"],"prefix":"10.1093","volume":"13","author":[{"given":"P.","family":"Extermann","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Bischof","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Marguerat","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Mermillod","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","container-title":["Human Reproduction"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/academic.oup.com\/humrep\/article-pdf\/13\/1\/220\/9815621\/130220.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,8,23]],"date-time":"2017-08-23T10:22:01Z","timestamp":1503483721000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/humrep\/article-lookup\/doi\/10.1093\/humrep\/13.1.220"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998,1,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1998,1,1]]}},"URL":"https:\/\/doi.org\/10.1093\/humrep\/13.1.220","relation":{},"ISSN":["0268-1161","1460-2350"],"issn-type":[{"value":"0268-1161","type":"print"},{"value":"1460-2350","type":"electronic"}],"subject":[],"published":{"date-parts":[[1998,1,1]]}}}