Affiliation: | 1. Emory University, Department of Pediatrics, Atlanta, Ga;2. Pennsylvania State University, Department of Public Health Sciences, Hershey, Pa;3. University of Arizona, Department of Medicine, Tucson, Ariz;4. Brigham and Women''s Hospital, Harvard Medical School, Department of Medicine, Boston, Mass;5. Wake Forest University, Department of Medicine, Winston-Salem, NC;6. University of Wisconsin, Department of Medicine, Madison;7. University of Pittsburgh, Department of Medicine, Pittsburgh, Pa;8. Washington University, Departments of Medicine and Pediatrics, St Louis, Mo;9. Cleveland Clinic, Lerner Research Institute, Cleveland, Ohio;10. University of California, San Francisco, Departments of Medicine and Pediatrics, Calif;11. Case Western Reserve University, Department of Pediatrics, Cleveland, Ohio;12. Boston Children''s Hospital, Harvard Medical School, Department of Pediatrics, Boston, Mass;13. University of Virginia, Department of Pediatrics, Charlottesville, Va |