Cordts, Stephanie E.
Schneble, Lukas
Schnitzler, Paul
Wenzel, Jürgen J.
Vinke, Tobias
Rieger, Susanne
Fichtner, Alexander
Tönshoff, Burkhard
Höcker, Britta http://orcid.org/0000-0003-4131-2273
Article History
Received: 10 October 2017
Revised: 24 January 2018
Accepted: 25 January 2018
First Online: 2 March 2018
Compliance with ethical standards
: This study was designed, analyzed, and reported conforming to the STROBE guidelines. It was conducted in full accordance with the principles of the Declaration of Helsinki and Good Clinical Practice (GCP) guidelines and approved by the Ethics Committee of the Medical Faculty of the University of Heidelberg (process number S-006/2017). Informed consent and assent were obtained from all parents or guardians and patients when appropriate for their age.
: The authors declare that they have no conflict of interest.