RT Journal Article SR Electronic T1 Questions for a tobacco-free future JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP i1 OP i2 DO 10.1136/tobaccocontrol-2013-051066 VO 22 IS suppl 1 A1 Elizabeth A Smith YR 2013 UL http://tobaccocontrol.bmj.com/content/22/suppl_1/i1.abstract AB