Received: 17 June 2021
Accepted: 29 August 2021
First Online: 14 September 2021
: The authors declare that they have no conflict of interest.
: 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.
: This study has obtained IRB approval from the department of Anatomy of the University Hospital of Strasbourg and the need for informed consent was waived.
: For this type of study consent for publication is not required.