title: Contingent reinforcement of lowered blood-alcohol levels in an outpatient chronic alcoholic.
mesh_terms: D000437:Alcoholism / Q000628:therapy*; D001944:Breath Tests; D002908:Chronic Disease; D000431:Ethanol / Q000097:blood*; D006703:Ill-Housed Persons / Q000534:rehabilitation; D006801:Humans; D008297:Male; D008875:Middle Aged; D012054:Reinforcement, Psychology
chemical_list: D000431:Ethanol