Dadak, Mete
Pul, Refik
Lanfermann, Heinrich
Hartmann, Hans
Hehr, Ute
Donnerstag, Frank
Michels, Dirk
Tryc, Anita Blanka
Article History
Received: 5 September 2018
Accepted: 18 December 2018
First Online: 4 January 2019
Conflict of interest
: M. Dadak, R. Pul, H. Lanfermann, H. Hartmann, U. Hehr, F. Donnerstag, D. Michels and A.B. Tryc declare that they have no competing interests