Kölle, Theresa
Alt, Wilfried
Wagner, Daniel
Article History
Received: 23 March 2020
Accepted: 15 July 2020
First Online: 29 July 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: The study protocol was approved by the institutional review boards of the authors´ affiliated institutions. All measurements within in the study follow the guidelines of the Declaration of Helsinki.
: Informed consent was obtained from all individual participants included in the study.