1. The role of oral anticoagulants in epistaxis
2. Reversal agents for non-vitamin K antagonist oral anticoagulants
3. WHO declares COVID‐19 a pandemic;Cucinotta D;Acta Biomed,2020
4. National Center for Immunization and Respiratory Diseases (NCIRD) Division of Viral Diseases‐‐‐May 7 2020.https://www.cdc.gov/coronavirus/2019‐ncov/prevent‐getting‐sick/index.html
5. Clinical pathology of critical patient with novel coronavirus pneumonia (COVID‐19);Luo W;Pathol Pathobiol,2020