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Key:
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Joined: Sep 2013
Posts: 9,874
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Joined: Sep 2013
Posts: 9,874
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JONATHAN M. SAMET, M.D., FRANCESCA DOMINICI, PH.D., FRANK C. CURRIERO, PH.D., IVAN COURSAC, M.S., AND SCOTT L. ZEGER, PH.D. FINE PARTICULATE AIR POLLUTION AND MORTALITY IN 20 U.S. CITIES, 1987–1994 The New England Journal of Medicine VOLUME 343 DECEMBER 14, 2000 NUMBER 24 © Copyright, 2000, by the Massachusetts Medical Society http://www.nejm.org/doi/pdf/10.1056/NEJM200012143432401
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Joined: Sep 2013
Posts: 9,874
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Joined: Sep 2013
Posts: 9,874
Master Elite Member
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Joined: Sep 2013
Posts: 9,874
Master Elite Member
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