{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T14:32:49Z","timestamp":1787236369726,"version":"build-2736575974"},"reference-count":9,"publisher":"Springer Science and Business Media LLC","issue":"5283","license":[{"start":{"date-parts":[[1971,1,29]],"date-time":"1971-01-29T00:00:00Z","timestamp":33955200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[1971,1,29]],"date-time":"1971-01-29T00:00:00Z","timestamp":33955200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nature"],"published-print":{"date-parts":[[1971,1,29]]},"DOI":"10.1038\/229343a0","type":"journal-article","created":{"date-parts":[[2005,8,1]],"date-time":"2005-08-01T16:58:09Z","timestamp":1122915489000},"page":"343-343","source":"Crossref","is-referenced-by-count":17,"title":["Human Blastocyst grown in vitro in Ovulation Cervical Mucus"],"prefix":"10.1038","volume":"229","author":[{"given":"LANDRUM B.","family":"SHETTLES","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","reference":[{"key":"BF229343a0_CR1","first-page":"43","volume":"3","author":"LB Shettles","year":"1969","unstructured":"Shettles, L. B., J. Reprod. Med., 3, 43 (1969).","journal-title":"J. Reprod. Med."},{"key":"BF229343a0_CR2","doi-asserted-by":"publisher","first-page":"235","DOI":"10.1016\/0002-9378(53)90559-6","volume":"66","author":"LB Shettles","year":"1953","unstructured":"Shettles, L. B., Amer. J. Obstet. Gynec., 66, 235 (1953).","journal-title":"Amer. J. Obstet. Gynec."},{"key":"BF229343a0_CR3","doi-asserted-by":"publisher","first-page":"99","DOI":"10.1111\/j.2164-0947.1954.tb00398.x","volume":"17","author":"LB Shettles","year":"1955","unstructured":"Shettles, L. B., Trans. NY Acad. Sci., 17, 99 (1955).","journal-title":"Trans. NY Acad. Sci."},{"key":"BF229343a0_CR4","doi-asserted-by":"publisher","first-page":"398","DOI":"10.1016\/0002-9378(58)90228-X","volume":"76","author":"LB Shettles","year":"1958","unstructured":"Shettles, L. B., Amer. J. Obstet. Gynec., 76, 398 (1958).","journal-title":"Amer. J. Obstet. Gynec."},{"key":"BF229343a0_CR5","doi-asserted-by":"publisher","DOI":"10.1097\/00006254-196012000-00043","volume-title":"Ovum Humanum","author":"LB Shettles","year":"1960","unstructured":"Shettles, L. B., Ovum Humanum (Urban and Schwarzenberg, Munich, 1960)."},{"key":"BF229343a0_CR6","first-page":"750","volume":"20","author":"LB Shettles","year":"1962","unstructured":"Shettles, L. B., Obstet. Gynec., 20, 750 (1962).","journal-title":"Obstet. Gynec."},{"key":"BF229343a0_CR7","first-page":"246","volume":"10","author":"LB Shettles","year":"1964","unstructured":"Shettles, L. B., Bull. Sloane Hospital for Women, 10, 246 (1964).","journal-title":"Bull. Sloane Hospital for Women"},{"key":"BF229343a0_CR8","volume-title":"Scientific Foundations of Obstetrics and Gynecology","author":"LB Shettles","year":"1970","unstructured":"Shettles, L. B., in Scientific Foundations of Obstetrics and Gynecology (edit. by Philipp, E. E., Barnes, J., and Newton, M.) (Heinemann, London, 1970)."},{"key":"BF229343a0_CR9","doi-asserted-by":"publisher","first-page":"1307","DOI":"10.1038\/2271307a0","volume":"227","author":"RG Edwards","year":"1970","unstructured":"Edwards, R. G., Steptoe, P. C., and Purdy, J. M., Nature, 227, 1307 (1970).","journal-title":"Nature"}],"container-title":["Nature"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.nature.com\/articles\/229343a0","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/229343a0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/229343a0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,11]],"date-time":"2025-04-11T07:27:17Z","timestamp":1744356437000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nature.com\/articles\/229343a0"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1971,1,29]]},"references-count":9,"journal-issue":{"issue":"5283","published-print":{"date-parts":[[1971,1,29]]}},"alternative-id":["BF229343a0"],"URL":"https:\/\/doi.org\/10.1038\/229343a0","relation":{},"ISSN":["0028-0836","1476-4687"],"issn-type":[{"value":"0028-0836","type":"print"},{"value":"1476-4687","type":"electronic"}],"subject":[],"published":{"date-parts":[[1971,1,29]]}}}