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Matt, G., D. Wahlgren, M. Hovell, J. Zakarian, J. Bernert, S. Meltzer, J. Pirkle, and S. Caudill. Measuring Environmental Tobacco Smoke Exposure in Infants and Young Children Through Urine Cotinine and Memory-based Parental Reports: Empirical Findings and Discussion. BMJ Group, 1999.

Matt, G., et al. Measuring Environmental Tobacco Smoke Exposure in Infants and Young Children Through Urine Cotinine and Memory-based Parental Reports: Empirical Findings and Discussion. BMJ Group, 1999.