Affiliation: | 1. Laboratory of Rheumatology, Bambino Gesù Children''s Hospital, Roma, Italy;2. Department of Medical and Surgical Neonatology, Bambino Gesù Children''s Hospital, Roma, Italy;3. Clinical Chemistry Laboratory, Bambino Gesù Children''s Hospital, Roma, Italy;4. Department of Clinical Medicine, Division of Gastroenterology, La Sapienza University, Roma, Italy |