Study designs using a direct-to study participant approach for self-reported data collection.

WIEDERKEHR S, MICHEL J, FOURNIE X. Direct-to-Patient Contact unit, Mapi, Lyon, FRANCE. Study designs using a direct-to study participant approach for self-reported data collection. Poster presentation at the 1st Colloque on E-tools and Social Networks for Epidemiology, Paris, May 21st, 2013.

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