Salehi Ravesh, Mona
Rickers, Carsten
Bannert, Finn Jonathan
Hautemann, David
Al Bulushi, Abdullah
Gabbert, Dominik Daniel
Wegner, Philip
Kis, Eva
Hansen, Jan Hinnerk
Jerosch-Herold, Michaeal
Kramer, H.-H.
Logoteta, Jana
Article History
Received: 6 December 2017
Accepted: 2 May 2018
First Online: 10 May 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The study was performed according to the protocol (No. AZ 168/07) approved by the institutional ethics committee and in accordance with the ethical standards laid down in the 1964 declaration of Helsinki and its later amendments.
: All parents or legal guardians gave their informed consent in a written form.