Litter size and the duration of pregnancy in mice.
D000818:Animals; D000831:Animals, Newborn; D001723:Birth Rate; D001947:Breeding; D004958:Estradiol / Q000494:pharmacology*; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D051379:Mice; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000187:drug effects*
D004967:Estrogens; D004958:Estradiol