time to conception planned pregnancies, time required for conception study, normal fertility time to pregnancy, planned pregnancy conception intervals, historical fertility data 1950, conception timing baseline data, fertility intervals population study, pregnancy planning time to conception
Cite this article
TIETZE C, GUTTMACHER AF, RUBIN S (1950). Time required for conception in 1727 planned pregnancies. *Fertility and Sterility*, *1*(4), 338-346. https://doi.org/10.1016/s0015-0282(16)30244-8
Guttmacher AF, Rubin S, Tietze C. Time required for conception in 1727 planned pregnancies. Fertil Steril. 1950. doi:10.1016/s0015-0282(16)30244-8
Guttmacher, A. F., et al. "Time required for conception in 1727 planned pregnancies." *Fertility and sterility*, 1950.
Keywords
Family Planning Services, Fertilization, Humans, Insemination, INSEMINATION
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