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NEJM198409273111305
NEJM198409273111305
http://dx.doi.org/10.1056/NEJM198409273111305
Effects of environmental tobacco smoke on urinary cotinine excretion in nonsmokers. Evidence for passive smoking.
P356
Q39345804-2C5FDBD4-67D0-4E7B-888A-FE217FDA03C5
P356
NEJM198409273111305
http://dx.doi.org/10.1056/NEJM198409273111305