![](https://www.pdfsearch.io/img/f84d5db1d84749e00035a019eef47d61.jpg) Date: 2010-01-07 14:46:05
| | © International Epidemiological AssociationInternational Journal of Epidemiology 2001;30:427–432 Printed in Great BritainAdd to Reading ListSource URL: www.epidemiology.chDownload Document from Source Website File Size: 165,60 KBShare Document on Facebook
|