worlds top hospitals in 2012..

1. Johns Hopkins Hospital, Baltimore

2. Massachusetts General Hospital, Boston

]

. Mayo Clinic, Rochester, Minn.

4. Cleveland Clinic

5. Ronald Reagan UCLA Medical Center, Los Angeles

6. New York-Presbyterian University Hospital of Columbia and Cornell, N.Y.

7. UCSF Medical Center, San Francisco

8. Brigham and Women's Hospital, Boston

9. Duke University Medical Center, Durham, N.C.

10. Hospital of the University of Pennsylvania, Philadelphia