Zitt, Emanuel http://orcid.org/0000-0001-6944-6041
Fischer, Anton
Lhotta, Karl
Concin, Hans
Nagel, Gabriele http://orcid.org/0000-0001-6185-8535
Article History
Received: 18 June 2019
Accepted: 14 April 2020
First Online: 5 May 2020
Competing interests
: The authors declare no competing interests.