Genske, F
Kühn, J-P
Pietzner, M
Homuth, G
Rathmann, W
Grabe, H J
Völzke, H
Wallaschofski, H
Friedrich, N
Article History
Received: 14 February 2017
Revised: 17 July 2017
Accepted: 22 July 2017
First Online: 14 August 2017
Competing interests
: The authors declare no conflict of interest.