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Manlove J, Welti K, Barry M, Peterson K, Schelar E, Wildsmith E.Manlove J, et al. Among authors: welti k.Perspect Sex Reprod Health. 2011 Jun;43(2):119-28. doi: 10.1363/4311911. Epub 2011 May 17.Perspect Sex Reprod Health. 2011.PMID: 21651711
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