title: Postpartum estrus in Norway rats. I. Behavior.
mesh_terms: D000818:Animals; D004971:Estrus; D005260:Female; D007700:Kinetics; D008027:Light; D010507:Periodicity; D049590:Postpartum Period; D011187:Posture; D011247:Pregnancy; D051381:Rats; D012726:Sexual Behavior, Animal / Q000502:physiology*