| Country | Medical Institution | Principal Investigator | City | Status | Link | 
|---|---|---|---|---|---|
| Spain | Hospital Virgen del Rocio | Javier Ampuero | Sevilla | Active | |
| Spain | Hospital Universitario Y Politécnico La Fe | Marina Berenguer | Valencia | Active | |
| Spain | University Hospital Clínic de Barcelona | Xavier Forns | Barcelona | Active | |
| Spain | University Hospital GC Dr Negrín | Ildefonso Quiñones-Morales | Las Palmas de Gran Canaria | Active | 
| Country | Medical Institution | Principal Investigator | City | Status | Link | 
|---|---|---|---|---|---|
| Germany | Universitätsklinikum Düsseldorf; University Clinic Duesseldorf | Christian Hartmann | Duesseldorf | Active | |
| Germany | Charité – Universitätsmedizin Berlin; Charité - Medical University Berlin | Frank Tacke | Berlin | Active | |
| Germany | Universitätsklinikum Leipzig; University Clinic Leipzig | Thomas Berg | Leipzig | Active | |
| Germany | Medizinische Hochschule Hannover (MHH); Hanover Medical School (MHH) | Heiner Wedemeyer | Hannover | Active | 
| Country | Medical Institution | Principal Investigator | City | Status | Link | 
|---|---|---|---|---|---|
| Saudi Arabia | King Faisal Specialist Hospital in Riyadh | Saad Alghamdi | Riyadh | Active |