Study invitations with envelopes made from recycled paper do not increase likelihood of active responses or study participation in the German National Cohort

by Malte Langeheine, Hermann Pohlabeln, Wolfgang Ahrens, Kathrin Günther, Stefan Rach
Published 2019-07-01

Attrition in the European Child Cohort IDEFICS/I.Family: Exploring Associations Between Attrition and Body Mass Index

by Malte Langeheine, Hermann Pohlabeln, Fabio Lauria, Toomas Veidebaum, Michael Tornaritis, Denes Molnar, Gabriele Eiben, Gabriele Eiben, Stefaan de Henauw, Luis A. Moreno, Garrath Williams, Wolfgang Ahrens, Wolfgang Ahrens, Stefan Rach
Published 2018-08-01