title: Effects of carbon monoxide on responding under a progressive ratio schedule in rats.
mesh_terms: D000818:Animals; D002248:Carbon Monoxide / Q000097:blood / Q000494:pharmacology*; D003216:Conditioning, Operant / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule
chemical_list: D002248:Carbon Monoxide