Chronic drug administration in behavioral studies by subcutaneous pellets.
D000818:Animals; D001285:Atropine / Q000008:administration & dosage / Q000494:pharmacology; D001522:Behavior, Animal / Q000187:drug effects*; D003624:Darkness; D004343:Drug Implants; D008027:Light; D008297:Male; D009043:Motor Activity / Q000187:drug effects; D051381:Rats; D013806:Theophylline / Q000008:administration & dosage / Q000494:pharmacology
D004343:Drug Implants; D001285:Atropine; D013806:Theophylline