1. McGovern Medical School University of Texas Health Science Center at Houston Houston TX USA
2. University of Tennessee Health Science Center Memphis TN USA
3. Univeristy of California Los Angles Los Angeles CA USA
4. School of Public Health University of Texas Health Sciences Center at Houston Houston TX USA
5. Memorial Hermann Hospital Houston TX USA
6. University of Arizona College of Medicine Phoenix AZ USA
7. University of Colorado Denver CO USA
8. Weill Cornell Medicine New York NY USA
9. Mills Peninsula Medical Center Burlingame CA USA
10. Indiana University School of Medicine Indianapolis IN USA
11. Greenburgh Pride Westchester NY USA