PT - JOURNAL ARTICLE ED - , TI - CORRECTION DP - 2007 Apr 01 TA - Tobacco Control PG - 144--144 VI - 16 IP - 2 4099 - http://tobaccocontrol.bmj.com/content/16/2/144.short 4100 - http://tobaccocontrol.bmj.com/content/16/2/144.full SO - Tob Control2007 Apr 01; 16