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Timing of intercourse.
Simpson JL, Gray RH, Queenan JT, Mena P, Perez A, Kambic RT, Pardo F, Barbato M, Spieler J. Simpson JL, et al. Among authors: perez a. Hum Reprod. 1995 Aug;10(8):2176-7. doi: 10.1093/oxfordjournals.humrep.a136262. Hum Reprod. 1995. PMID: 8567867 No abstract available.
Sex ratio associated with natural family planning.
Perez A, Eger R, Domenichini V, Kambic R, Gray RH. Perez A, et al. Fertil Steril. 1985 Jan;43(1):152-3. doi: 10.1016/s0015-0282(16)48337-8. Fertil Steril. 1985. PMID: 3965312 Free article. No abstract available.
4,614 results