Association between ozone and asthma emergency department visits in Saint John, New Brunswick, Canada.

Environmental Health Perspectives - Tập 104 Số 12 - Trang 1354-1360 - 1996
David M. Stieb1, Richard T. Burnett1, Robert Beveridge1, Jeffrey R. Brook1
1Air Quality Health Effects Research Section, Health Canada, Ottawa, Ontario, Canada

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