Changes in bar-press duration accompanying the estrous cycle.
D000704:Analysis of Variance; D000818:Animals; D004848:Epithelium; D004967:Estrogens / Q000494:pharmacology; D004971:Estrus; D005260:Female; D008297:Male; D009043:Motor Activity; D010053:Ovary / Q000502:physiology; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D051381:Rats; D012726:Sexual Behavior, Animal; D014621:Vagina / Q000166:cytology; D014626:Vaginal Smears
D004967:Estrogens; D011374:Progesterone