[Proceedings: Episodic secretion of gonadotropin and its changes due to aging].
D000328:Adult; D000368:Aged; D000375:Aging; D006065:Gonadotropins, Pituitary / Q000378:metabolism*; D006801:Humans; D008297:Male; D008875:Middle Aged
D006065:Gonadotropins, Pituitary