1. Defining the epidemiology of Covid-19: studies needed;Lipsitch M;N Engl J Med,2020
2. Clinical characteristics of coronavirus disease 2019 in China;Guan WJ;N Engl J Med,2020
3. Coronavirus disease 2019 (COVID-19). Situation report - 77,2020
4. Neurologic manifestations of hospitalized patients with Coronavirus Disease 2019 in Wuhan, China;Mao L;JAMA Neurol,2020
5. Clinical characteristics of 138 hospitalized patients with 2019 novel coronavirus-infected pneumonia in Wuhan, China;Wang D;JAMA,2020