PT - JOURNAL ARTICLE AU - Hecht, Stephen S AU - Stepanov, Irina AU - Hatsukami, Dorothy K TI - Major tobacco companies have technology to reduce carcinogen levels but do not apply it to popular smokeless tobacco products AID - 10.1136/tc.2010.037648 DP - 2011 Nov 01 TA - Tobacco Control PG - 443--443 VI - 20 IP - 6 4099 - http://tobaccocontrol.bmj.com/content/20/6/443.short 4100 - http://tobaccocontrol.bmj.com/content/20/6/443.full SO - Tob Control2011 Nov 01; 20