1. Intensive Care Unit Arnaldo Milián Castro University Hospital Santa Clara Cuba
2. Intensive Care Unit Manuel “Piti” Fajardo Rivero Hospital Santa Clara Cuba
3. Intensive Care Unit Salvador Allende Hospital Havana Cuba
4. Intensive Care Unit Joaquín Castillo Hospital Havana Cuba
5. Intensive Care Unit Faustino Pérez Hospital Matanzas Cuba
6. Intensive Care Unit Frank País Hospital Havana Cuba
7. Intensive Care Unit Pedro Kouri Institute Havana Cuba
8. Emergency Department Ministry of Cuban Health Havana Cuba
9. Clinical Research Direction Center of Molecular Immunology (CIM) Havana Cuba
10. Research Direction Center of Molecular Immunology (CIM) Havana Cuba