Wahl Hans-Werner, Deeg Dorly
Heidelberg University, Bergheimer Strasse 20, 69115 Heidelberg, Germany.
VU University Medical Centre, LASA, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands.
Eur J Ageing. 2011 Feb 20;8(1):1-2. doi: 10.1007/s10433-011-0183-7. eCollection 2011 Mar.