Proitsi, P
Kim, M
Whiley, L
Pritchard, M
Leung, R
Soininen, H
Kloszewska, I
Mecocci, P
Tsolaki, M
Vellas, B
Sham, P
Lovestone, S
Powell, J F
Dobson, R J B
Legido-Quigley, C
Article History
Received: 2 June 2014
Revised: 28 September 2014
Accepted: 26 October 2014
First Online: 13 January 2015
Competing interests
: The authors declare no conflict of interest.