Funding for this research was provided by:
Technische Universität München
Received: 16 November 2020
Accepted: 22 April 2021
First Online: 7 June 2021
: Ethical approval was obtained by the Ethics Committee of the technical University Munich (ref. number 435/18 s).Informed consent was obtained from a parent and/or legal guardian from all subjects, as subjects were under 18.All methods were carried out in accordance with relevant guidelines and regulations.
: Consent for publication is given by all authors.
: Two authors (NB, MS) received payments for presentations by a third party involved in an aspect of this work. All the other authors have no conflict of interest.