PT - JOURNAL ARTICLE AU - Judith Mackay TI - Dr David D Yen, JD (1921–2002) AID - 10.1136/tc.11.4.379 DP - 2002 Dec 01 TA - Tobacco Control PG - 379--379 VI - 11 IP - 4 4099 - http://tobaccocontrol.bmj.com/content/11/4/379.short 4100 - http://tobaccocontrol.bmj.com/content/11/4/379.full SO - Tob Control2002 Dec 01; 11