| 1 (1137) | Tartu University Hospital | EST |  |
| 2 (1412) | Masaryk Memorial Cancer Institute | CZE | |
| 3 (2034) | Maria Sklodowska-Curie Memorial Institute of Oncology | POL | |
| 4 (2220) | Russian Academy of Medical Sciences * | RUS | |
| 5 (2699) | Institute of Epidemiology and Microbiology of the Russian Academy of Medical Sciences | RUS | |
| 6 (2874) | International Clinical Research Center | CZE | |
| 7 (2949) | Institute for Clinical and Experimental Medicine | CZE | |
| 8 (3037) | Institute of Oncology Ljubljana | SVN | |
| 9 (3178) | Children's Memorial Health Institute | POL | |
| 10 (3301) | Ljubljana University Medical Centre | SVN | |
| 11 (3383) | University Hospital Hradec Kralove | CZE | |
| 12 (3528) | N.N. Blokhin Cancer Research Center of the Russian Academy of Medical Sciences | RUS | |
| 13 (3611) | University Hospital Brno | CZE | |
| 14 (3651) | John Paul II Hospital | POL | |
| 15 (3736) | Burdenko Neurosurgery Institute of the Russian Academy of Medical Sciences | RUS | |
| 16 (3745) | Institute of Cardiology | POL | |
| 17 (3833) | St. Anne's University Hospital Brno * | CZE | |
| 18 (3842) | Military Medical Academy | SRB | |
| 19 (4203) | Clinical Center of Serbia | SRB | |
| 20 (4226) | University General Hospital | CZE | |
| 21 (4230) | Institute of Experimental Medicine of the NorthWest Branch of the Russian Academy of Medical Sciences | RUS | |
| 22 (4249) | Motol University Hospital | CZE | |
| 23 (4332) | Polish Mothers Memorial Hospital Research Institute | POL | |
| 24 (4380) | University Hospital in Olomouc | CZE | |
| 25 (4466) | University Hospital Centre Zagreb | HRV | |
| 26 (5143) | Sisters of Charity Hospital, Zagreb | HRV | |
| 27 (5383) | Institute for Medical Research and Occupational Health | HRV | |
| 28 (5937) | University Hospital Vinohrady | CZE | |
| 29 (5947) | Clinical Hospital Centre Rijeka | HRV | |
| 30 (5960) | Hematological Scientific Centre of the Russian Academy of Medical Sciences | RUS | |
| 31 (5990) | Institute of Biomedical Chemistry of the Russian Academy of Medical Sciences | RUS | |
| 32 (6129) | National Academy of Medical Sciences of Ukraine | UKR | |
| 33 (6192) | Clinical Hospital Dubrava | HRV | |
| 34 (6969) | Scientific Centre of Obstetrics, Gynaecology and Perinatology of the Russian Academy of Medical Sciences | RUS | |
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