Discussant for section on behavioral change. Behavioral change: a stopped smoker is not a non-smoker.
D001521:Behavior Therapy / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans; D012008:Recurrence; D012055:Reinforcement Schedule; D012056:Reinforcement, Social; D000074606:Smoking Prevention; D012931:Social Environment; D013997:Time Factors