Wahl Hans-Werner, Deeg Dorly
Department of Social and Environmental Gerontology, German Centre for Research of Ageing, University of Heidelberg, Bergheimer Strasse 20, 69115 Heidelberg, Germany.
VU University Medical Centre/LASA, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands.
Eur J Ageing. 2005 Mar;2(1):1. doi: 10.1007/s10433-005-0023-8. Epub 2005 Mar 9.