1 Division of Hospital Medicine, Cincinnati Children's Hospital Medical Center and the Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
2 Department of Medicine, Emory University, Atlanta, Georgia.
3 University of California, San Francisco, and San Francisco Veterans Affairs Medical Center, San Francisco, California.
4 Department of Pediatrics, Tufts Children's Hospital, Tufts University School of Medicine, Boston, Massachusetts.