Funding for this research was provided by:
Medizinischen Hochschule Hannover
Article History
Received: 5 February 2018
Accepted: 23 August 2018
First Online: 29 August 2018
Ethics approval and consent to participate
: The study was approved by Hannover Medical School’s Research Ethics Committee on 12 January 2016. All participants signed an informed consent form.
: Not applicable.
: The authors declare that they have no competing interests.
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