Received: 11 July 2017
Accepted: 7 January 2018
First Online: 17 January 2018
Ethics approval and consent to participate
: The Medical Ethics Committees of the Medisch Spectrum Twente, Enschede and Isala, Zwolle hospitals determined, in accordance with the ‘Medical Research involving Human subjects’ act in the Netherlands, that no ethical approval was required because all data were collected in the course of regular daily clinical practice. Nonetheless, patients were fully informed, and prior written informed consent was obtained from each patient.
: Not applicable.
: There was no involvement of study sponsors, none of the authors have financial, commercial, or other associations that might pose a conflict of interest in connection with the work.
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