1. Chief of Pediatric Unit, Maternal and Child Department, Azienda USL-IRCCS di Reggio Emilia, Sant’Anna Hospital, Castelnovo ne’ Monti, Via Roma, 2, Reggio Emilia 42035, Italy
2. Maternal and Child Department, Azienda USL-IRCCS di Reggio Emilia, ASMN Hospital, Reggio Emilia, Italy
3. Week Hospital Unit, Department of Pediatrics, “Pietro Barilla” Children’s Hospital, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
4. Pediatric Unit, ASST Franciacorta, Public Hospital, Iseo, Brescia, Italy
5. Pediatric Gastroenterology, Department of Pediatrics, “Pietro Barilla” Children’s Hospital, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy