Published by Oxford University Press on behalf of the International Epidemiological Association ß The Author 2007; all rights reserved. Advance Access publication 27 July 2007 International Journal of Epidemiology 2007;

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Date: 2010-01-08 11:17:22		Published by Oxford University Press on behalf of the International Epidemiological Association ß The Author 2007; all rights reserved. Advance Access publication 27 July 2007 International Journal of Epidemiology 2007; Add to Reading List Source URL: www.epidemiology.ch Download Document from Source Website File Size: 48,65 KB Share Document on Facebook