1. WHO Coronavirus (Covid-19) Dashboard | WHO coronavirus (COVID-19) dashboard with vaccination data;World Health Organization,2022
2. Magnitude of asymptomatic COVID-19 cases throughout the course of infection: a systematic review and meta-analysis;Alene;PLoS One,2021
3. Risk factors for disease severity, unimprovement, and mortality in COVID-19 patients in Wuhan, China;Zhang;Clin Microbiol Infect,2020
4. Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study;Zhou;Lancet,2020
5. Characteristics, comorbidities and survival analysis of young adults hospitalized with COVID-19 in New York City;Altonen;PLoS One,2020