Funding for this research was provided by:
Graduate School of Medical Sciences of Groningen
Consejo Nacional de Ciencia y Tecnología
EU Relent consortium
Received: 9 April 2020
Accepted: 19 October 2020
First Online: 4 November 2020
Ethics approval and consent to participate
: The constitutional review board of the UMCG approved this study (METc2012/375) and all donors gave their written informed consent prior to blood withdrawal.
: Not applicable.
: AB was a consultant for Grünenthal Gmbh until 2017. EB as an employee of the UMCG received speaker/consulting fees from Roche paid to the UMCG. PH, WA and EB received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement 668036. The other authors have declared no conflicts of interest.