Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (GR 1955 4-1)
Text and Data Mining valid from 2019-09-14
Received: 19 April 2019
Accepted: 13 August 2019
First Online: 14 September 2019
Ethics approval and consent to participate
: Ethical approval has been obtained from the ethical committee of the University Hospital of Jena as the leading ethical committee (5085–02/17). Each of the 14 German study centers obtained ethical approval of the local committees, which were referred to the Jena committee (Institutinal review board (IRB) Friedrich Schiller University, Jena) (5085–02/17 before approval was issued. Informed consent is obtained from study participants in written form. The involved local IRBs were the following: IRB Universitäts-Kinderklinik, Kiel, IRB Hannover Medical School, Hannover, IRB Medical School, Rheinischen Friedrich-Wilhelms-University, Bonn, IRB State Office for Health and Social Affairs (LAGeSo) Berlin (two centres), IRB of the state of Saxony-Anhalt, Halle (two centres), IRB Medical School, Leipzig, IRB Technical University Dresden, IRB Medical School, Eberhard-Karls-University, Tübingen, IRB University of Ulm, IRB Ludwig Maximilian University, Munich, IRB national Medical association Bavaria, Munich.
: N.A. at this stage.
: The authors declare that they have no competing interests.