1. El Camino Hospital Mountain View CA USA
2. Henry Ford Health System Detroit MI USA
3. Brown University Warren Albert Medical School Providence RI USA
4. Stanford Medicine/Stanford University Stanford CA USA
5. University of California San Francisco CA USA
6. Mexican Oncology Hospital SXXI, IMSS Mexico City Mexico
7. University of Michigan Ann Arbor MI USA
8. H. Lee Moffitt Cancer Center & Research Institute Tampa FL USA
9. University of Washington Seattle WA USA
10. VCU School of Medicine Richmond VA USA
11. Biopticka Laboratory Plzen Czech Republic
12. Cleveland Clinic Cleveland OH USA