Affiliation: | 1. Division of Allergy, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy;2. Division of Rheumatology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy;3. Division of Allergy and Immunology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA |