Department of Pediatrics, Phoenix Children’s, Phoenix, Arizona
Elizabeth Dupuy, MD
Division of Dermatology, Phoenix Children’s, Phoenix, Arizona
Christine R.F. Rukasin, MD
Division of Allergy and Immunology, Phoenix Children’s, Phoenix, Arizona; Division of Allergy, Asthma and Clinical Immunology, Mayo Clinic, Phoenix and Scottsdale, Arizona; Correspondence to: Christine R. F. Rukasin, MD, Division of Allergy and Immunology, Phoenix Children's, 1919 E Thomas Rd, Phoenix, AZ 85016.