Studies on responses by 'resident' rats housed in different ways to intruders of differing endocrine status [proceedings].
D000374:Aggression / Q000523:psychology*; D000818:Animals; D002369:Castration; D005260:Female; D006799:Housing, Animal; D006801:Humans; D008297:Male; D051381:Rats; D013731:Territoriality