American Journal of Epidemiology © The AuthorPublished by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.pe - Hopkins School - Document - PDFSEARCH.IO

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	American Journal of Epidemiology © The AuthorPublished by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.pe Add to Reading List Document Date: 2015-06-19 14:18:12 Open Document File Size: 573,11 KB Share Result on Facebook

American Journal of Epidemiology © The AuthorPublished by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.peAdd to Reading List