rats of either sex as intact or partially hepatectomized ( two-thirds liver removal ) were injected s.c. daily for 7 days post-operatively with natural and synthetic estrogens , androgens or anabolic steroids , progesterone and adrenal cortical hormones and killed on day 10 at which time the livers were processed for microsomal analyses ( protein , cytochrome p-450 and enzymes , aminopyrine demethylase and aromatic hydrocarbon or benzo [ a ] pyrene hydroxylase ) .
C0019144
liver
C0023884
livers