Albertsen, Inke Marie
Dettmann, Kristina
Babin, Kornelia
Stücker, Ralf
Schröder, Jan
Zech, Astrid
Hollander, Karsten
Article History
First Online: 28 March 2018
Compliance with ethical guidelines
:
: I.M. Albertsen, K. Dettmann, K. Babin, R. Stücker, J. Schröder, A. Zech and K. Hollander declare that they have no competing interests.
: All procedures involving human participants were in accordance with the ethical standards of the institutional research committee (protocol no. PV4971) and the 1964 Helsinki Declaration (in its current revised form). Informed consent was obtained from all participants and their parents or legal guardians.