2011. ICPE Meeting – Direct to patient contact: an added value to follow up patients in observational, longitudinal studies

El Kebir S, Boussetta S, Bloch K, Susini-Poulet F, Soubeyrand B, Fournie X, Gauchoux R, Seux M, Bougain B, Bourhis Y. Direct to patient contact: an added value to follow up patients in observational, longitudinal studies. Presented at: 27th ICPE; August 14-17, 2011; Chicago, USA.