Sex differences in the play behavior of prepubescent rats.
D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn / Q000254:growth & development*; D001522:Behavior, Animal / Q000187:drug effects*; D005260:Female; D006120:Grooming / Q000187:drug effects; D008297:Male; D009043:Motor Activity / Q000187:drug effects; D051381:Rats; D012737:Sex Factors; D012741:Sexual Maturation / Q000187:drug effects*; D012919:Social Behavior; D013739:Testosterone / Q000494:pharmacology*
D013739:Testosterone