Article History
Received: 22 January 2021
Accepted: 1 June 2021
First Online: 22 June 2021
Declarations
:
: Permission was granted from the local ethics board reference (Landesärztekammer Hessen): 2019–1414-evBO.All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study, formal consent is not required.
: The authors declare no competing interests.
: Figures that have not been published elsewhere, no permission required.