1 Division of Pediatric Allergy, Immunology, and Rheumatology, University of North Carolina School of Medicine, Chapel Hill, NC. Electronic address: edward_iglesia@med.unc.edu.
2 Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, Tenn.
3 School of Information and Library Science, University of North Carolina at Chapel Hill, Chapel Hill, NC.
4 Division of Rheumatology, Allergy and Immunology, University of North Carolina School of Medicine, Chapel Hill, NC.