title: Commentary on Shahab & McEwen (2009): Understanding and preventing attrition in online smoking cessation interventions: a self-regulatory perspective.
authors.affiliation: Department of Psychology, University of Sheffield, Western Bank, Sheffield S10 2TN, UK. t.webb@sheffield.ac.uk
authors.forename: Thomas L
authors.initials: TL
authors.lastname: Webb
mesh_terms: D006801:Humans; D020407:Internet; D010352:Patient Dropouts / Q000523:psychology*; D016032:Randomized Controlled Trials as Topic; D016540:Smoking Cessation / Q000379:methods / Q000523:psychology*; D013813:Therapy, Computer-Assisted / Q000379:methods*