Schwendemann, Hanna E.
Kuttler, Heidi
Mößle, Thomas
Bitzer, Eva Maria
Funding for this research was provided by:
Bundesministerium für Gesundheit (IIA5-2511DSM220)
Article History
Received: 13 February 2017
Accepted: 25 January 2018
First Online: 7 February 2018
Ethics approval and consent to participate
: The Ethics Commission of the State Medical Association Baden-Wuerttemberg approved the study (Germany, May 22, 2012; No. F-2012-035). We obtained written permission to participate in the study from parents and adolescents.
: Not applicable
: On behalf of all authors, the corresponding author declares having no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.