Funding for this research was provided by:
Ministerium für Wirtschaft, Arbeit und Gesundheit Mecklenburg-Vorpommern
Received: 15 June 2020
Accepted: 22 June 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: This study was approved by the Ethical Committee of University Hospital Rostock, and the written informed consent was collected from each participant.
: Not applicable.
: The authors declare that they have no competing interests.