Krappinger, Dietmar
Kaser, Verena
Merkel, Anke
Neururer, Sabrina
Lindtner, Richard A.
Article History
Received: 22 December 2019
Accepted: 15 July 2020
First Online: 31 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this type of study no ethics committee approval is required by national law according to a general statement of our Institutional Ethics Committee.