1. Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York, USA
2. Allama Iqbal Medical College, Lahore, Punjab, Pakistan
3. East Carolina University Brody School of Medicine, Greenville, North Carolina, USA
4. Woodhull Medical Center, Brooklyn, New York, USA
5. Jersey Shore University Medical Center, Neptune, New Jersey, USA
6. Mercy Medical Center, Baltimore, Maryland, USA
7. Saint Francis Hospital and Medical Center, Hartford, Connecticut, USA
8. Louisiana State University Health, Shreveport, Louisiana, USA
9. North Shore University Hospital and Hofstra University Zucker School of Medicine, Manhasset, New York, USA