Retrospective analysis of changing characteristics of treatment-seeking smokers: implications for further reducing smoking prevalence
Teresa M Leyro, Erin E Crew, Susan W Bryson, Anna Lembke, Steffani R Bailey, Judith J Prochaska, Lisa Henriksen, Stephen P Fortmann, Joel D Killen, Diana T Killen, Sharon M Hall, Sean P David
BMJ Open Jun 2016, 6 (6) e010960; DOI: 10.1136/bmjopen-2015-010960