Hypomania 发表于 2025-3-26 23:00:08
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Gender Selection,uman sex ratio is almost 50:50, it appears that the sex ratio of babies born primarily reflects the ratio of X- and Y-bearing sperm in semen and is probably not significantly impacted by other factors, such as the female reproductive tract environment or differential fetal survival to birth.黑豹 发表于 2025-3-27 09:21:39
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2523-3785 laboratory accreditation, vasectomy reversal, ethical and legal considerations of donor insemination, optimizing success in a donor insemination program, and strategic therapies for ejaculatory disorders and erectile dysfunction in infertile men.978-1-61737-491-3978-1-59259-876-2Series ISSN 2523-3785 Series E-ISSN 2523-3793小鹿 发表于 2025-3-27 15:40:00
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