![Tobacco-specific nitrosamines in tobacco from U.S. brand and non-U.S. brand cigarettes]()
Tobacco-specific nitrosamines in tobacco from U.S. brand and non-U.S. brand cigarettesAshley, David; Beeson, Michelle; Johnson, Diana; McCraw, Joan; Richter, Patricia; Pirkle, James; Pechacek, Terry F.; Song, Siqing; Watson, Clifford; Richter, Patricia; Pechacek, Terry F. · Nicotine & Tobacco Research · 2003