{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,2,15]],"date-time":"2023-02-15T05:23:53Z","timestamp":1676438633344},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"4","content-domain":{"domain":["eje.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1963,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n        <jats:p>Ten steroids (progesterone, 17\u03b1-hydroxyprogesterone-17\u03b1-caproate, 6\u03b1-methyl-17\u03b1-hydroxyprogesterone-17\u03b1-acetate, 1,2\u03b1-methylene-6-chloro-\u0394<jats:sup>6<\/jats:sup>-17\u03b1-hydroxyprogesterone-17\u03b1-acetate, 17\u03b1-hydroxy-19-norprogesterone-17\u03b1-acetate, 17\u03b1-hydroxy-19-norprogesterone-1 7\u03b1-caproate, 17\u03b1-methyl-19-nortestosterone, 17\u03b1-ethyl-19-nortestosterone, 17\u03b1-ethinyl-19-nortestosterone, 17\u03b1-allyl-estr-4-en-17\u03b2-ol) were tested for their pregnancy-maintaining effect in spayed pregnant rats. In three of these steroids the ratio between progestogen and oestrogen was determined.<\/jats:p>\n        <jats:p>Pregnancy in rats was also maintained by combining 17\u03b1-hydroxyprogesterone-17\u03b1-caproate (one single dose) and 17\u03b1-ethinyl-19-nortestosterone (given daily).<\/jats:p>","DOI":"10.1530\/acta.0.0420533","type":"journal-article","created":{"date-parts":[[2008,12,15]],"date-time":"2008-12-15T20:29:45Z","timestamp":1229372985000},"page":"533-536","update-policy":"http:\/\/dx.doi.org\/10.1530\/crossmarkpolicy-1","source":"Crossref","is-referenced-by-count":5,"title":["PREGNANCY MAINTAINING EFFECT OF SYNTHETIC PROGESTOGENS IN THE RAT"],"prefix":"10.1093","volume":"42","author":[{"given":"G. K.","family":"Suchowsky","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","container-title":["Acta Endocrinologica"],"original-title":[],"link":[{"URL":"https:\/\/eje.bioscientifica.com\/view\/journals\/eje\/42\/4\/acta_42_4_008.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/eje.bioscientifica.com\/view\/journals\/eje\/42\/4\/acta_42_4_008.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,2,14]],"date-time":"2023-02-14T16:22:04Z","timestamp":1676391724000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/ejendo\/article\/42\/4\/533\/6955253"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1963,4]]},"references-count":0,"journal-issue":{"issue":"4"},"URL":"https:\/\/doi.org\/10.1530\/acta.0.0420533","relation":{},"ISSN":["0804-4643","1479-683X"],"issn-type":[{"value":"0804-4643","type":"print"},{"value":"1479-683X","type":"electronic"}],"subject":[],"published":{"date-parts":[[1963,4]]}}}