RT Journal Article SR Electronic T1 Invited commentary JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP 101 OP 102 DO 10.1136/tobaccocontrol-2012-050440 VO 21 IS 2 A1 Lai, Vienna Wai-yin YR 2012 UL http://tobaccocontrol.bmj.com/content/21/2/101.abstract AB