1. Corona Virus Disease 2019 (COVID-19) Situation Report-51;World Health Organization (Who),2020
2. Adult Elective Surgery and Procedures Recommendations: Limit All Non-essential Planned Surgeries and Procedures, Including Dental, until Further Notice;Centers for Medicare & Medicaid Services (CMS),2020
3. New Recommendations Regarding Urgent and Non-urgent Patient Care,2020
4. COVID-19: Elective Case Triage Guidelines for Surgical Care,2020