AMERICAN JOURNAL OF EPIDEMIOLOGY Copyright © 1981 by The Johns Hopkins University School of Hygiene and Public Health All rights reserved Vol. 114, No. 4

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Date: 2011-06-02 15:09:30		AMERICAN JOURNAL OF EPIDEMIOLOGY Copyright © 1981 by The Johns Hopkins University School of Hygiene and Public Health All rights reserved Vol. 114, No. 4 Add to Reading List Source URL: www.epidemiology.ch Download Document from Source Website File Size: 797,11 KB Share Document on Facebook