{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T01:02:13Z","timestamp":1767920533507,"version":"3.49.0"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[1970,8,1]],"date-time":"1970-08-01T00:00:00Z","timestamp":18316800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":["reproduction-online.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1970,8,1]]},"abstract":"<jats:title>Summary.<\/jats:title>\n                  <jats:p>Parturition in mice implanted with pellets of oestradiol on Day 16 of pregnancy occurred 1 day later than in cholesterol-treated controls. This prolongation of pregnancy was attributed to a reduction in the litter size occurring pre-partum due to `jettisoning' of an average of 2\u00b72 foetuses per mouse. Progesterone treatment was only partially effective in preventing the oestrogen-induced foetal loss.<\/jats:p>","DOI":"10.1530\/jrf.0.0220509","type":"journal-article","created":{"date-parts":[[2007,5,15]],"date-time":"2007-05-15T17:09:47Z","timestamp":1179248987000},"page":"509-514","update-policy":"https:\/\/doi.org\/10.1530\/rep\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":7,"title":["THE EFFECT OF OESTROGEN UPON PREGNANCY AND PARTURITION IN THE MOUSE"],"prefix":"10.1093","volume":"22","author":[{"given":"D. G.","family":"PORTER","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[1970,8,1]]},"container-title":["Reproduction"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/reproduction\/article-pdf\/22\/3\/509\/64937373\/jrf_22_3_014.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/reproduction\/article-pdf\/22\/3\/509\/64937373\/jrf_22_3_014.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T19:14:56Z","timestamp":1767899696000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/reproduction\/article\/22\/3\/509\/8292020"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1970,8,1]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1970,8,1]]}},"URL":"https:\/\/doi.org\/10.1530\/jrf.0.0220509","relation":{},"ISSN":["1470-1626","1741-7899"],"issn-type":[{"value":"1470-1626","type":"print"},{"value":"1741-7899","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[1970,8,1]]},"published":{"date-parts":[[1970,8,1]]}}}