Wayne J. Millar (613-951-1631; Wayne.Millar@statcan.ca) is with the Health Statistics Division at Statistics Canada, Ottawa, Ontario, K1A 0T6; Gerry Hill is a research epidemiologist in Kingston, Ontario, K7M 3Z3.
D.M. Mannino, J.E. Moorman, B. Kingsley et al., « Health effects related to environmental tobacco smoke exposure in children in the United States: data from the Third National Health and Nutrition Examination Survey », Archives of Pediatrics and Adolescent Medicine, 155(1), 2001, p.