Ostermaier, Agnes
Barth, Niklas
Linde, Klaus
Article History
Received: 11 July 2019
Accepted: 27 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: The study protocol was approved by the Medical Faculty of the Technical University of Munich’s ethics committee (reference number 450/15 s). All participants gave written consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.