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Showing papers in "Fertility and Sterility in 1969"



Journal ArticleDOI
John MacLeod1
TL;DR: Tests available to assess female fertility appear to be good, sperm motility is the most important factor in semen quality, and pregnancies are possible at very low count levels providing the motility of the few cells present is good.

144 citations



Journal ArticleDOI
TL;DR: It is contended that the end point for disappearance of sperm following vasectomy can be determined in a rapid and consistent manner and aspermia was demonstrated after 6-10 ejaculations after vasectomy.

111 citations














Journal ArticleDOI
TL;DR: It is concluded that the use of Ovulen in this series resulted in a reduction in milk production and infant weight gain.


Journal ArticleDOI
TL;DR: The postcoital antifertility activity of 17 natural and synthetic steroidal and non-steroidal compounds was evaluated in the rabbit and the estrogens tested were the most effective inhibitors of implantation while ORF-3858 was slightly less effective.


Journal ArticleDOI
TL;DR: 25 mature New Zealand white rabbit does were used in an investigation to determine whether resection of the uterotubal junction (UTJ) alters the postovulatory functional blocking mechanism which keeps newly fertilized ova in the oviduct from 72-96 hours.






Journal ArticleDOI
TL;DR: It was concluded that as IUD in the sheep uterus inhibits sperm transport and ovum fertilization, perhaps by changing the nature of uterine motility.

Journal ArticleDOI
TL;DR: A study was conducted of an oral contraceptive taken once a month on a total of 259 patients in Mexico City who were studied by 4 doctors and patients and doctors were satisfied with the method.

Journal ArticleDOI
TL;DR: Levels of acid-soluble nucleotides RNA protein and acid and alkaline phosphatases show cyclic variations during the menstrual cycle suggesting that IUDs may alter the response of endometrium to endogenous ovarian hormones.