Corinne A. Keet, MD, PhD 
Pediatric Allergy and Immunology, Johns Hopkins School of Medicine, CMSC 1102, 600 N. Wolfe St., Baltimore, MD 21202, USA
Pamela A. Frischmeyer-Guerrerio, MD, PhD 
Food Allergy Research Unit, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases (NIAID), 4 Memorial Drive, Building 4, Room 228B, MSC0425, Bethesda, MD 20892, USA
Robert A. Wood, MD 
Pediatric Allergy and Immunology, Johns Hopkins School of Medicine, CMSC 1102, 600 N. Wolfe St., Baltimore, MD 21202, USA