title: Effects of pre- and postpubertal castration and testosterone on pup-killing behavior in the male rat.
mesh_terms: D000367:Age Factors; D000374:Aggression / Q000187:drug effects*; D000818:Animals; D000831:Animals, Newborn; D001522:Behavior, Animal / Q000187:drug effects*; D002369:Castration; D003423:Critical Period, Psychological; D006801:Humans; D007279:Injections, Subcutaneous; D008297:Male; D010919:Placebos; D011627:Puberty; D051381:Rats; D012737:Sex Factors; D013739:Testosterone / Q000008:administration & dosage*
chemical_list: D010919:Placebos; D013739:Testosterone