1. Mayo Clinic, Rochester, MN
2. Brown University School of Public Health, Providence, RI
3. University of Texas Southwestern Medical Center, Dallas, TX
4. Global Advanced Imaging, Little Rock, AR
5. Fox Chase Cancer Center, Philadelphia, PA
6. Washington University School of Medicine, St. Louis, MO
7. Massachusetts Eye and Ear Hospital, Boston, MA
8. University of Oklahoma, Oklahoma City, OK
9. Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, PA
10. University of Arkansas for Medical Sciences, Little Rock, AR