title: Introduction to the special issue "Smoking cessation: clinical and research directions".
authors.affiliation: Department of Psychology, American University, Washington, DC 20016-8062, USA. dhaaga@american.edu
authors.forename: D A
authors.initials: DA
authors.lastname: Haaga
mesh_terms: D006801:Humans; D012106:Research; D016540:Smoking Cessation; D014029:Tobacco Use Disorder / Q000517:prevention & control / Q000534:rehabilitation