1. Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele
2. Recep Tayyip Erdoğan University
3. University of Michigan Health System
4. Leiden University Medical Center
5. Univ. Paris-Sud, Le Kremlin- Bicêtre
6. Columbia University, Vagelos College of Physicians and Surgeons
7. Instituto Estadual do Cérebro Paulo Niemeyer
8. Harvard Medical School
9. Erasmus Medical Center
10. Brigham & Women's Hospital
11. Massachusetts General Hospital, Harvard Medical School
12. University of Belgrade
13. LMU University Hospital, LMU Munich
14. Charité Universitätsmedizin
15. Erasmus University Medical Center
16. University of Oxford
17. Cedars-Sinai Medical Center
18. Santiago de Compostela University and Ciber OBN