Funding for this research was provided by:
Stichting voor de Technische Wetenschappen (13526)
Received: 25 February 2019
Accepted: 23 October 2019
First Online: 9 December 2019
Ethics approval and consent to participate
: The Medical Ethics Committee of the Radboud University Nijmegen Medical Center approved the study design, protocols and procedures, and written informed consent was obtained from each subject.
: All subjects gave their consent to publish their data.
: The authors declare that they have no competing interests.