title: Varenicline as maintenance therapy.
authors.forename: Charles P
authors.initials: CP
authors.lastname: O'Brien
mesh_terms: D001552:Benzazepines / Q000627:therapeutic use*; D004311:Double-Blind Method; D005500:Follow-Up Studies; D006801:Humans; D008134:Long-Term Care; D015337:Multicenter Studies as Topic; D018722:Nicotinic Agonists / Q000627:therapeutic use*; D011810:Quinoxalines / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*; D055502:Secondary Prevention; D016540:Smoking Cessation / Q000379:methods*; D014029:Tobacco Use Disorder / Q000534:rehabilitation*; D000068580:Varenicline
chemical_list: D001552:Benzazepines; D018722:Nicotinic Agonists; D011810:Quinoxalines; D000068580:Varenicline