Cook, D. G., Whincup, P. H., Papacosta, O., Strachan, D. P., Jarvis, M. J., & Bryant, A. (1993). Relation of passive smoking as assessed by salivary cotinine concentration and questionnaire to spirometric indices in children.

Cook, D G., P H. Whincup, O. Papacosta, D P. Strachan, M J. Jarvis, and A. Bryant. Relation of Passive Smoking As Assessed By Salivary Cotinine Concentration and Questionnaire to Spirometric Indices in Children. 1993.

Cook, D G., et al. Relation of Passive Smoking As Assessed By Salivary Cotinine Concentration and Questionnaire to Spirometric Indices in Children. 1993.