Testosterone and fear behavior in male chicks.
D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects; D002645:Chickens; D004924:Escape Reaction / Q000187:drug effects*; D005239:Fear / Q000187:drug effects*; D008297:Male; D011930:Reaction Time / Q000187:drug effects; D013739:Testosterone / Q000494:pharmacology*
D013739:Testosterone