Kühn, Tilman
Sookthai, Disorn
Graf, Mirja E
Schübel, Ruth
Freisling, Heinz
Johnson, Theron
Katzke, Verena
Kaaks, Rudolf
Article History
Received: 9 June 2017
Revised: 5 August 2017
Accepted: 11 August 2017
First Online: 12 September 2017
Competing interests
: The authors declare no conflict of interest.