1. Department of Internal Medicine; Division of Infectious Diseases; University of Michigan Medical School; Ann Arbor MI
2. Department of Internal Medicine; Division of Infectious Diseases; Emory University School of Medicine; Atlanta GA
3. Department of Internal Medicine; Division of Infectious Diseases; Duke University School of Medicine; Durham NC
4. Departments of Pediatrics and Surgery; University of Pittsburgh School of Medicine; Pittsburgh PA
5. Department of Internal Medicine; Division of Infectious Disease; University of Pennsylvania School of Medicine; Philadelphia PA