Determinants of salivary cotinine level: a population-based study in Brazil.
Figueiredo VC, Szklo M, Szklo AS, Benowitz N, Lozana JA, Casado L, Masson E, Samet J.
Figueiredo VC, et al. Among authors: szklo as, szklo m.
Rev Saude Publica. 2007 Dec;41(6):954-62. doi: 10.1590/s0034-89102006005000048. Epub 2007 Dec 4.
Rev Saude Publica. 2007.
PMID: 17992352
Free article.