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Article History

Received: 24 April 2021

Accepted: 11 August 2021

First Online: 12 September 2021

Declarations

:

: The research project was approved by the responsible ethics committee (Ärztekammer Berlin, No.: Eth-12/19). We confirm that all methods were performed in accordance with the relevant guidelines and regulations of the ethics committee of <i>Ärztekammer Berlin</i>.

: Participation was voluntary, and the study participants gave informed written consent.

: Not applicable.

: The authors declare no conflict of interest.