Published on in Vol 22, No 5 (2020): May
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18796, first published
.
1 School of Public Health, The University of Hong Kong, Hong Kong, China (Hong Kong)
2 School of Nursing, The Hong Kong Polytechnic University, Hong Kong, China (Hong Kong)
3 School of Nursing, The University of Hong Kong, Hong Kong, China (Hong Kong)
*these authors contributed equally