Galenkamp Henrike, Deeg Dorly J H
Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
Eur J Ageing. 2016 May 18;13(2):87-90. doi: 10.1007/s10433-016-0379-y. eCollection 2016 Jun.