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1 General Pediatrics Operative Unit, Policlinico-Vittorio Emanuele University Hospital, University of Catania, Via Plebiscito n. 628, 95100, Catania, Italy.
2 Pediatric Nephrology Operative Unit, La Sapienza University Hospital, University of Rome, Rome, Italy.
3 Rheumatology Operative Unit, Policlinico-Vittorio-Emanuele University Hospital, University of Catania, Catania, Italy.
4 General Pediatrics Operative Unit, Policlinico-Vittorio Emanuele University Hospital, University of Catania, Via Plebiscito n. 628, 95100, Catania, Italy. giovitaliti@yahoo.it.
1 General Pediatrics Operative Unit, Policlinico-Vittorio Emanuele University Hospital, University of Catania, Via Plebiscito n. 628, 95100, Catania, Italy.
2 Pediatric Nephrology Operative Unit, La Sapienza University Hospital, University of Rome, Rome, Italy.
3 Rheumatology Operative Unit, Policlinico-Vittorio-Emanuele University Hospital, University of Catania, Catania, Italy.
4 General Pediatrics Operative Unit, Policlinico-Vittorio Emanuele University Hospital, University of Catania, Via Plebiscito n. 628, 95100, Catania, Italy. giovitaliti@yahoo.it.