Saliva cotinine as a measure of smoking status in field settings
Abrams, D B ; Follick, M J ; Biener, L ; Carey, K B ; Hitti, J
American journal of public health (1971), 1987-07, Vol.77 (7), p.846-848
[Periódico revisado por pares]
Washington, DC: Am Public Health Assoc
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