Variation in length of the estrous cycle in mice due to former intrauterine proximity to male fetuses.
D000818:Animals; D003463:Cues; D004971:Estrus; D005260:Female; D005333:Fetus; D008297:Male; D051379:Mice / Q000196:embryology / Q000502:physiology*; D011247:Pregnancy; D012931:Social Environment