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Lewis SE, Sterling ES, Young IS, Thompson W.Lewis SE, et al. Among authors: sterling es.Fertil Steril. 1997 Jan;67(1):142-7. doi: 10.1016/s0015-0282(97)81871-7.Fertil Steril. 1997.PMID: 8986699
Lewis SE, Donnelly ET, Sterling ES, Kennedy MS, Thompson W, Chakravarthy U.Lewis SE, et al. Among authors: sterling es.Mol Hum Reprod. 1996 Nov;2(11):873-8. doi: 10.1093/molehr/2.11.873.Mol Hum Reprod. 1996.PMID: 9237228