1. Vital 202 Surveillances: The Epidemiological Characteristics of an Outbreak of 2019 Novel 203 Coronavirus Diseases (COVID-19)—China, 2020,2020
2. Update: characteristics of health care personnel with COVID-19 — United States, february 12–july 16, 2020;Hughes;MMWR (Morb Mortal Wkly Rep),2020
3. AHA Hospital Statistics 2017 Edition,2018
4. Changes in hospital admission for urgent conditions during COVID-19 pandemic;Oseran;Am J Manag Care,2020
5. COVID-19 Projections,2020