From the Professor of Pediatrics, Feinberg School of Medicine, Northwestern University, Evanston, IL and Division of Emergency Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL.
Reprints: Susan Fuchs, MD, Division of Emergency Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, 225 E Chicago Ave, Box 62, Chicago, IL 60611 (e-mail: [email protected]).