1. Educational differences in the validity of self-reported physical activity. (December 2015) Authors: Winckers, Annemarie; Mackenbach, Joreintje; Compernolle, Sofie; Nicolaou, Mary; van der Ploeg, Hidde; De Bourdeaudhuij, Ilse; Brug, Johannes; Lakerveld, Jeroen Journal: BMC public health Issue: Volume 15:Number 1(2015) Page Start: 1 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗