Published on in Vol 10, No 5 (2021): May
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/27088, first published
.
1 Department of Health Promotion, Maastricht University/CAPHRI, Maastricht, Netherlands
2 Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands