Light and intermittent smokers: background and perspective.
Shiffman
Saul
S
Smoking Research Group, Department of Psychology, University of Pittsburgh, 130 North Bellefield Avenue, Pittsburgh, PA 15213, USA. shiffman@pitt.edu
D006801:Humans; D012907:Smoking / Q000453:epidemiology*; D014029:Tobacco Use Disorder; D014481:United States / Q000453:epidemiology