In reply--Electronic cigarettes are efficacious.
CAPHRI School for Public Health and Primary Care, Maastricht University Medical Centre, Maastricht, The Netherlands; Cancer Research UK Health Behaviour Research Centre, University College, London, United Kingdom.
Daniel
D
Kotz
Cancer Research UK Health Behaviour Research Centre, University College, London, United Kingdom.
Jamie
J
Brown
Cancer Research UK Health Behaviour Research Centre, University College, London, United Kingdom.
Robert
R
West
D015928:Cognitive Behavioral Therapy / Q000379:methods*; D006801:Humans; D008297:Male; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000379:methods*; D061485:Tobacco Use Cessation Devices / Q000592:standards*