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December 16, 1944

Proceedings of the Conference on Problems of Human Fertility

JAMA. 1944;126(16):1056. doi:10.1001/jama.1944.02850510064027

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Abstract

Criteria of ovulation, sperm migration and placental transmission are discussed in twelve papers. Severinghaus feels that there is a dependable relation between pregnandiol in the urine and corpus luteum formation. Rock and Hertig report on 14 very early ova with average ovulation as day 14 preceding expected menstrual period, and slight deviation. Wislocki compares nidation in monkeys at day 9 with the human day 7 1/2. Hartman is unsure of a monkey safe period, his range of ovulation time in 293 animals being from the 9th to the 23d day. Corner declares that corpora lutea in woman and the monkey can be dated fairly accurately, questioning Hartman's bimanual indications. Greulich reports favorably on rectal temperature tests when taken by institution attendants as indicating the time of ovulation, with check by 29 laparotomies and microscopic sections. Rubenstein checked on vaginal smears as an indicator of ovulation by 18 laparotomies. Boling gave

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