Gude, Philipp http://orcid.org/0000-0002-3045-3823
Gustedt, Franziska
Bellgardt, Martin
Vogelsang, Heike
Herzog-Niescery, Jennifer
Dazert, Stefan
Weber, Thomas Peter
Volkenstein, Stefan
Article History
Received: 15 January 2020
Accepted: 16 March 2020
First Online: 3 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study were in accordance with the ethical standards of the Ethical Committee of the Ruhr-University Bochum, Bochum, Germany (registration number: 5108-14, 26 August 2015) and with the 1964 Helsinki declaration and its later amendments.
: Informed consent was obtained from all individual parents of the participating children included in the study. Moreover, children aged ≥ 7 years were age-appropriate informed about the study and asked to participate.