Smoking withdrawal research clinics.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000661:Amphetamine / Q000008:administration & dosage; D005260:Female; D005500:Follow-Up Studies; D006266:Health Education; D006801:Humans; D008120:Lobeline / Q000008:administration & dosage; D008297:Male; D010424:Pentobarbital / Q000008:administration & dosage; D010919:Placebos / Q000008:administration & dosage; D012106:Research; D012737:Sex Factors; D012907:Smoking / Q000188:drug therapy
D010919:Placebos; D000661:Amphetamine; D008120:Lobeline; D010424:Pentobarbital