1Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
2Medical Practice Evaluation Center, Massachusetts General Hospital, Boston, Massachusetts
3Harvard Medical School, Boston, Massachusetts
4Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
5Infection Control Unit, Massachusetts General Hospital, Boston, Massachusetts
6Department of Pharmacy, Massachusetts General Hospital, Boston, Massachusetts
7Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts