1 Division of Allergy & Immunology, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Ill.
2 Division of Medical Informatics and Telemedicine, Children's Mercy Hospital, Kansas City, Mo.
3 Division of Medical Informatics and Telemedicine, Children's Mercy Hospital, Kansas City, Mo. Electronic address: jportnoy@cmh.edu.