Funding for this research was provided by:
Luxembourg National Research Fond (P16/BM/11192686)
Received: 1 September 2019
Accepted: 17 August 2020
First Online: 24 August 2020
Ethics approval and consent to participate
: The use of patient material was approved by the ethical committee of the Goethe University Frankfurt, Germany (GN 438/19). The parents of the patients gave written informed consent for the surgery.
: Not applicable.
: The authors declare no conflicts of interest.