机译:Impact of Pictorial Cigarette Warnings Compared With Surgeon General's Warnings on Understanding of the Negative Health Consequences of Smoking
RTI Int, Ctr Hlth Policy Sci & Tobacco Res, 3040 E Cornwallis Rd,POB 12194, Res Triangle Pk, NC 27709 USA;
US FDA, Ctr Tobacco Prod, Silver Spring, MD USA;