Reported Participation in Case-Control Studies: Changes over Time

There is concern that participation in case-control studies has declined. To address this question, the author and colleagues reviewed data from 82 US and Canadian case-control studies published in epidemiologic journals during two periods: 1988–1990 and 1997–January 1999. The median year of data co...

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Veröffentlicht in:American journal of epidemiology 2001-09, Vol.154 (6), p.574-581
1. Verfasser: OLSON, Sara H
Format: Artikel
Sprache:eng
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