Published on in Vol 6, No 2 (2020): Apr-Jun
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/18576, first published
.
![Surveillance of COVID-19 in the General Population Using an Online Questionnaire: Report From 18,161 Respondents in China Surveillance of COVID-19 in the General Population Using an Online Questionnaire: Report From 18,161 Respondents in China](https://asset.jmir.pub/assets/370d31b0e9a924eaa1a88a63e8f4bda0.png 480w,https://asset.jmir.pub/assets/370d31b0e9a924eaa1a88a63e8f4bda0.png 960w,https://asset.jmir.pub/assets/370d31b0e9a924eaa1a88a63e8f4bda0.png 1920w,https://asset.jmir.pub/assets/370d31b0e9a924eaa1a88a63e8f4bda0.png 2500w)
1 Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, Netherlands
2 Department of Health Ethics and Society, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands