Funding for this research was provided by:
Radboud University Medical Center
Article History
Received: 2 July 2019
Accepted: 12 September 2019
First Online: 30 October 2019
Conflict of interest
: T. Wagner, O. Kloeters, and DJ Ulrich declare that they have no conflict of interest.
: For this type of study, formal consent from a local ethics committee is not required.
: Informed consent was obtained from all individual participants included in the study.