RT Journal Article SR Electronic T1 Improving smoking cessation approaches at the individual level JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 252 OP 257 DO 10.1136/tobaccocontrol-2011-050348 VO 21 IS 2 A1 Paul Aveyard A1 Martin Raw YR 2012 UL http://tobaccocontrol.bmj.com/content/21/2/252.abstract AB