Horstmann, K
Boumendil, A
Finke, J
Finel, H
Kanfer, E
Milone, G
Russell, N
Bacigalupo, A
Chalandon, Y
Diez-Martin, J L
Ifrah, N
Chacon, M Jurado
Dreger, P
Article History
Received: 1 August 2014
Revised: 4 December 2014
Accepted: 22 December 2014
First Online: 9 March 2015
Competing interests
: The authors declare no conflict of interest.