1. Keck USC School of Medicine, Los Angeles, USA
2. The Rose Salter Medical Research Foundation, Newport Coast, USA
3. Department of Internal Medicine, Eastern Virginia Medical School, Pulmonary and Critical Care Medicine, Norfolk, USA
4. Pulmonary and Critical Care Medicine, Aurora St. Luke’s Medical Center, Milwaukee, USA
5. Department of Internal Medicine, Rocky Mountain Regional Veterans Affairs Medical Center in Aurora, CO and University of Colorado Anschutz Medical Campus in Aurora, CO Supported by the Emily Foundation, Boston, USA
6. Department of Marketing, Washington University, St. Louis, USA
7. Department of Internal Medicine, Jersey Shore University Medical Center, Hackensack Meridian School of Medicine at Seton Hall, Neptune, USA
8. Health Reporting, Parkchester Times, USA
9. United Memorial Medical Center, University of Texas School of Medicine, Houston, USA
10. CoronaTracker Community Research Group, Canada
11. Department of Infectious Disease, University of Modena and Reggio Emilia, Modena, Italy
12. Department of Internal Medicine, Hospital Universitari Germans Trias I Pujol, Badalona, Spain
13. Director, Centro Medico, UNIR Health Sciences School & Medical Center, Madrid, Spain
14. Department of Emergency Medicine, UniversityHospital of Rennes, Rennes, France
15. Department of Rheumatology, Hôpital Paris Saint-Joseph, Paris, France
16. Department of Respiratory Diseases, Azienda Ospedaliero-Universitaria Di Trieste, Trieste, Italia
17. Department of Oncology, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Napoli, Italia
18. Unidade De Investigação Cardiovascular (Unic), Faculdade De Medicina, Da Universidade Do Porto, Centro Hospitalar Universitário De São João, Porto, and Hospital Rainha Santa Isabel, Marco De Canaveses, Portugal
19. Department of Clinical Investigations, Center for Genetic Engineering and Biotechnology, Havana, Cuba
20. Qualitative Research, Helsinki, Finland
21. Department of Anesthesiology, Volda Hospital HMR, Norway
22. Department of Internal Medicine and Department of Biochemistry and Molecular Biophysics, ProHEALTH, an OPTUM Company, Columbia University, College of Physicians and Surgeons, USA