Référence: Hilgers TW, et al Cumulative pregnancy rates in patients with apparently normal fertility and fertility-focused intercourse.
Hilgers TW, Daly KD, Prebil AM, Hilgers SK. Cumulative pregnancy rates in patients with apparently normal fertility and fertility-focused intercourse. J Reprod Med. 1992 Oct;37(10):864-6.

Divers

Autre, divers: Unions sexuelles les jours reconnus comme fertile .. voir plus ..