| 1 (1361) | National Institute of Public Health, Poland | POL |  |
| 2 (1892) | Nofer Institute of Occupational Medicine | POL | |
| 2 (1892) | University Hospital Brno | CZE | |
| 4 (2905) | Children's Memorial Health Institute | POL | |
| 4 (2905) | Clinical Center of Serbia | SRB | |
| 4 (2905) | Clinical Center of Vojvodina | SRB | |
| 4 (2905) | Clinical Hospital Centre Rijeka | HRV | |
| 4 (2905) | Clinical Hospital Dubrava | HRV | |
| 4 (2905) | Clinical Hospital Split | HRV | |
| 4 (2905) | Institute for Clinical and Experimental Medicine | CZE | |
| 4 (2905) | Institute of Cardiology | POL | |
| 4 (2905) | Maria Sklodowska-Curie Memorial Institute of Oncology | POL | |
| 4 (2905) | Masaryk Memorial Cancer Institute | CZE | |
| 4 (2905) | Military Medical Academy | SRB | |
| 4 (2905) | Motol University Hospital | CZE | |
| 4 (2905) | National Institute of Public Health, Czech Republic | CZE | |
| 4 (2905) | Russian Academy of Medical Sciences | RUS | |
| 4 (2905) | St. Anne's University Hospital Brno | CZE | |
| 4 (2905) | University General Hospital | CZE | |
| 4 (2905) | University Hospital Centre Zagreb | HRV | |
| 4 (2905) | University Hospital Hradec Kralove | CZE | |
| 4 (2905) | University Hospital in Olomouc | CZE | |
|
