the apparent km and vmax of estradiol glucuronidation were determined in control , pregnant ( day 19 of gestation ) , phenobarbital-treated ( 80 mg/kg/day i.p . for 5 days ) and ethinylestradiol-treated ( 5 mg/kg/day i.p . for 5 days ) female rats .
C0032961
gestation
C0031412
phenobarbital