1. Johns Hopkins University School of Medicine Baltimore Maryland USA
2. Geriatric Medicine Associates Westminster Colorado USA
3. Icahn School of Medicine at Mount Sinai New York New York USA
4. Indiana University Indianapolis Indiana USA
5. West Virginia University Charleston West Virginia USA
6. Care New England Health System Warwick Rhode Island USA
7. University of South Florida Tampa Florida USA
8. Robley Rex VA Medical Center Louisville Kentucky USA
9. University of Central Florida Gotha Florida USA
10. VITAS Healthcare Gotha Florida USA