Albertsen, Inke Marie http://orcid.org/0000-0002-9026-8603
Brockmann, Barbara
Hollander, Karsten
Schröder, Jan
Zech, Astrid
Sehner, Susanne
Stücker, Ralf
Babin, Kornelia
Funding for this research was provided by:
Ministry for Science and Research in Hamburg (grant number LFF-FV13)
Article History
Received: 5 January 2018
Revised: 17 May 2018
Accepted: 1 June 2018
First Online: 23 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study and their parents (or legal guardians). All procedures performed involving human participants were in accordance with the ethical standards of the local ethics committee (ethical approval number PV4971) and with the 1964 Helsinki declaration and its later amendments.