PT - JOURNAL ARTICLE ED - , AID - 10.1136/tc.8.2.204 DP - 1999 Jun 01 TA - Tobacco Control PG - 204--209 VI - 8 IP - 2 4099 - http://tobaccocontrol.bmj.com/content/8/2/204.short 4100 - http://tobaccocontrol.bmj.com/content/8/2/204.full SO - Tob Control1999 Jun 01; 8