Funding for this research was provided by:
Received: 28 March 2021
Accepted: 3 September 2021
First Online: 23 September 2021
: The research was conducted ethically in accordance with the World Medical Association Declaration of Helsinki. Ethics approval for the study was given by the Ethics committee of the Medical Faculty of the University of Tuebingen (Project number: 210/2018BO2), Ethik Kommission, Eberhard Karls University, Gartenstraße 47, 72074 Tuebingen, Germany) and written informed parental consent was obtained.
: Not applicable.
: The authors have no financial relationship relevant to this article to disclose.The authors declare that they have no competing interests.