Simon, D.
Haschka, J.
Muschitz, C.
Kocijan, A.
Baierl, A.
Kleyer, A.
Schett, G.
Kapiotis, S.
Resch, H.
Sticherling, M.
Rech, J.
Kocijan, R.
Article History
Received: 2 December 2018
Accepted: 9 September 2019
First Online: 10 January 2020
Compliance with ethical standards
: The study was approved by the appropriate ethics committees and was conducted in accordance with the Declaration of Helsinki.
: None.