https://www.cdc.gov/coronavirus/2019-ncov/hcp/clinical-guidance-management-patients.html
https://www.med.umich.edu/asp/pdf/adult_guidelines/COVID-19-treatment.pdf
https://emedicine.medscape.com/article/2500114-treatment
https://www.aamc.org/coronavirus-covid-19-clinical-guidance-repository
https://www.idsociety.org/practice-guideline/covid-19-guideline-treatment-and-management/
https://www.acc.org/latest-in-cardiology/journal-scans/2020/04/24/12/22/association-of-inpatient-use-of-angiotensin
https://www.who.int/publications-detail/clinical-management-of-severe-acute-respiratory-infection-when-novel-coronavirus-(ncov)-infection-is-suspected
https://www.who.int/news-room/commentaries/detail/the-use-of-non-steroidal-anti-inflammatory-drugs-(nsaids)-in-patients-with-covid-19
https://covid19treatmentguidelines.nih.gov/
https://www.bmj.com/content/369/bmj.m1786
https://www.nice.org.uk/guidance/ng173
https://www.fip.org/files/content/priority-areas/coronavirus/COVID-19-Clinical-information-and-treatment-guidelines.pdf
https://www.mohfw.gov.in/pdf/RevisedNationalClinicalManagementGuidelineforCOVID1931032020.pdf
http://kjfy.meetingchina.org/msite/news/show/cn/3337.html