Elkholy, F.
Mikhaiel, B.
Repky, S.
Schmidt, F.
Lapatki, B. G.
Article History
Received: 25 April 2019
Accepted: 30 July 2019
First Online: 8 October 2019
Conflict of interest
: F. Elkholy, B. Mikhaiel, S. Repky, F. Schmidt and B.G. Lapatki certify that there is no actual or potential conflict of interest in relation to this article.