Funding for this research was provided by:
Merck (IISP 50678)
Received: 23 January 2019
Accepted: 30 September 2019
First Online: 19 October 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Antwerp University Hospital (Reference: EC13/5/60). All patients signed a written informed consent form before inclusion in this study.
: Not applicable.
: TS and VS have received research grants from Merck & Co / MSD. TS has received travel funding from Merck & Co / MSD. All other authors have no conflicts of interest related to this article.