1. University of Colorado; Aurora CO USA
2. Emory University; Atlanta GA USA
3. University of Minnesota; Minneapolis MN USA
4. NSHAT Haematology; Sofia Bulgaria
5. UMHAT Sveti Georgi; Plovdiv Bulgaria
6. UMHAT Sveta Marina; Varna Bulgaria
7. S.C. SANADOR SRL; Bucharest Romania
8. Constanta Clinical Hospital; Constanta Romania
9. Institutul Clinic Fundeni; Bucharest Romania
10. Instituto Dr Rubén Dávoli; Rosario Argentina
11. Bayer HealthCare Pharmaceuticals; Montville NJ USA