Funding for this research was provided by:
Medizinische Hochschule Hannover (MHH)
Received: 24 November 2020
Accepted: 29 March 2021
First Online: 23 April 2021
: All procedures were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinski Declaration and its later ammendments. This is an observational study. The Hannover Medical School Ethics Committee has confirmed that no ethical approval is required.
: Informed consent was obtained from all individual participants included in the study.
: Patients signed informed consent regarding publishing their data and photographs.
: Peter M. Vogt, Marian S. Mackowski, and Khaled Dastagir declare no conflict of interest.