P F Van Look

The ideal emergency contraceptive would be highly effective (surpassing the 75% effectiveness rate of the Yuzpe method), free of side effects, non-disruptive of the menstrual cycle, easily administered, interceptive, and affordable. Prevent…

Antiprogestogens, which block the action of progesterone at the cellular level through binding to the progesterone receptor, are proving to be one of the most significant developments in endocrinology in recent years. Several hundreds of su…

Spontaneous ovarian activity, as reflected by the urinary excretion of total estrogen and pregnanediol measured serially (thrice weekly) over a period of 3-4 months, was studied in nine young women (15-27 yr old) with a history of dysfuncti…