Funding for this research was provided by:
interreg v-a euregio meuse-rhine
agentschap innoveren en ondernemen
Received: 6 July 2021
Accepted: 30 November 2021
First Online: 28 December 2021
: This study was performed in accordance with the Declaration of Helsinki and approved by the Medical Ethics Committee of UZ KU Leuven (Registration number B322201731417) and local Ethics Committees of the participating centres. All subjects provided informed written consent prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.