Induction of Ovulation in the Human by Human Pituitary Gonadotropin 203 



FSHlTOmg/d} HCG (40001 U I 



iUllUUl i 



'Vio 20/10 "no 30/10 ''11 10/11 '5/n 



Fig. 8. Urinary excretion of estrogen, pregnanediol, 17-corticosteroids and 17-ketosteroids 



before and following the administration of FSH and HCG. Following the single intravenous 



injection of HCG the urine was collected in 3 8-hr samples. 



