Wunner, Christina
Stemmler, Mark
Masuch, Johanna
Gosch, Markus
Waller, Christiane
Singler, Katrin
Article History
Received: 19 February 2021
Accepted: 2 July 2021
First Online: 5 August 2021
Declarations
:
: C. Wunner, M. Stemmler, J. Masuch, M. Gosch, C. Waller and K. Singler declare that they have no competing interests regarding the submitted manuscript and the reported study.
: All procedures performed in studies involving human participants or on human tissue were in accordance with the 1975 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study. The study was approved by the local institutional review board and the ethics committee (Freiburger Ethikkomission International, Nr. 017/1504). Data acquisition was co-financed by the Staedtler-Stiftung, Nuremberg.