RT Journal Article SR Electronic T1 Public health implications JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP S48 OP S52 DO 10.1136/tc.4.suppl2.S48 VO 4 IS Suppl 2 A1 Ockene, Judith K YR 1995 UL http://tobaccocontrol.bmj.com/content/4/Suppl_2/S48.abstract AB