Article History
Received: 2 February 2020
Accepted: 26 April 2020
First Online: 14 May 2020
Ethics approval and consent to participate
: This study was carried out in accordance with the recommendations of the ethics commission of the Martin-Luther University Halle-Wittenberg with written informed consent from all patients. All patients provided written informed consent in accordance with the Declaration of Helsinki. The protocol was approved by the ethics commission of the Martin-Luther University Halle-Wittenberg.
: Consent for publication was obtained from all patients.
: The authors declare that they have no competing interests.