Article History
Received: 1 September 2020
Accepted: 1 December 2020
First Online: 11 December 2020
Ethics approval and consent to participate
: Approval of local ethics committee (ethics committee of the Faculty of Medicine,Technical University of Munich, no. 2015/143/16) was obtained. All patients signed an informed consent form.
: Written consent has been obtained from all patients.
: None.