| 1 (138) | Copenhagen University Hospital | DNK |  |
| 2 (221) | Statens Serum Institut | DNK | |
| 3 (258) | Karolinska University Hospital | SWE | |
| 4 (273) | European Centre for Disease Prevention and Control | SWE | |
| 5 (351) | Aarhus University Hospital | DNK | |
| 6 (354) | Oslo University Hospital | NOR | |
| 7 (405) | Helsinki University Central Hospital | FIN | |
| 8 (426) | Norwegian Institute of Public Health | NOR | |
| 9 (435) | Skane University Hospital | SWE | |
| 10 (446) | University Hospital of Northern Norway | NOR | |
| 11 (458) | Haukeland University Hospital | NOR | |
| 12 (518) | World Health Organization, Denmark | DNK | |
| 13 (522) | Turku University Hospital | FIN | |
| 14 (540) | National Institute for Health and Welfare | FIN | |
| 15 (573) | Odense University Hospital | DNK | |
| 16 (608) | Sahlgrenska University Hospital | SWE | |
| 17 (628) | Aalborg University Hospital | DNK | |
|
