RT Journal Article SR Electronic T1 Correction JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 62 OP 62 DO 10.1136/tobaccocontrol-2011-050338corr1 VO 22 IS 1 YR 2013 UL http://tobaccocontrol.bmj.com/content/22/1/62.abstract AB