Müller, Hanna
Stähling, Ann-Christin
Bruns, Nora
Weiss, Christel
Ai, Maria
Köninger, Angela
Felderhoff-Müser, Ursula
Funding for this research was provided by:
Philipps-Universität Marburg
Article History
Received: 13 May 2021
Revised: 1 August 2021
Accepted: 27 August 2021
First Online: 4 October 2021
Declarations
:
: The study was approved by the local ethics committee of the University Hospital Essen in accordance with the Helsinki declaration (1964) and its later amendments: 15-6521-BO
: The local ethics committee has confirmed that parental consent to participate is not necessary due to the retrospective and anonymous character of this study (15-6521-BO).
: The authors declare no competing interests.