Published on in Vol 9, No 10 (2020): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/21100, first published
.
1 Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
2 Centre for Epidemiology and Community Health, Stockholm, Sweden
3 Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden