L. VOIGT ;
KOEPSELL T. ;
DALING J.
|
2003
Dans American Journal of Epidemiology (Vol.157, n°1, January 2003) Article : Périodique
Dans American Journal of Epidemiology (Vol.157, n°1, January 2003) Article : Périodique
When conducting epidemiologic case-control studies, some investigators include only controls who can be interviewed within a certain time after contact and/or do not recontact potential participants who initially refuse, whereas others expend co[...]
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