1. 105. Human Rights Watch. Mobile Location Data and Covid-19: Q&A. May 13, 2020. https://www.hrw.org/news/2020/05/13/mobile-location-data-and-covid-19-qa. Accessed 21 Apr 2021.
2. Aslani N, Lazem M, Mahdavi S, et al. A review of mobile health applications in epidemic and pandemic outbreaks: lessons learned for COVID-19. Iran J Clin Infect Dis. 2020;15(2):e103649. https://doi.org/10.5812/archcid.103649.
3. Burke RM, Balter S, Barnes E, Barry V, Bartlett K, Beer KD, et al. Enhanced contact investigations for nine early travel-related cases of SARS-CoV-2 in the United States. PLoS One. 2020;15(9):e0238342. https://doi.org/10.1371/journal.pone.0238342.
4. CDC, Ministry of Health and Welfare, Taiwan. Recommendations for COVID-19 case definition, specimen collection, and diagnostic tests; 2020a. https://www.cdc.gov.tw/Category/MPage/np0wef4IjYh9hvbiW2BnoQ. Accessed 21 Apr 2021.
5. CDC, Ministry of Health and Welfare, Taiwan. Taiwan CDC learned from online sources that there had been at least 7 cases of atypical pneumonia in Wuhan, China; 2020b. https://covid19.mohw.gov.tw/en/cp-4868-53673-206.html. Accessed 21 Apr 2021.