PT - JOURNAL ARTICLE ED - , AID - 10.1136/tc.7.4.445 DP - 1998 Dec 01 TA - Tobacco Control PG - 445--445 VI - 7 IP - 4 4099 - http://tobaccocontrol.bmj.com/content/7/4/445.short 4100 - http://tobaccocontrol.bmj.com/content/7/4/445.full SO - Tob Control1998 Dec 01; 7