It was the subsequent use of stimulated cycles with clomiphene citrate and the use of human chorionic gonadotrophin ( hCG ) to control and time oocyte maturation, thus controlling the time of collection, that converted IVF from a research tool to a clinical treatment.
12.
Tuesday's policy change added steroids, stimulants ( other than caffeine or medications approved by the league medical staff ), EPO, human growth hormone, chorionic gonadotrophin ( another type of human growth hormone ), and diuretics ( used to mask the use of drugs ).
