Funding for this research was provided by:
osteology foundation (Scholarship 2019)
Johann Wolfgang Goethe-Universität, Frankfurt am Main
Received: 17 June 2021
Accepted: 4 November 2021
First Online: 12 November 2021
: The study protocol No. 92/19 was approved by the ethics committee of Goethe-University, Frankfurt-Germany, 2019 and considered the Helsinki Declaration of 1975, as revised in 2013. All included subjects signed an informed consent from and accepted to participate in this study.
: Not applicable.
: The authors report no competing interests related to this study.