1. Azienda USL-IRCCS di Reggio Emilia, Maternal and Child Department, Pediatric Unit, Sant’Anna Hospital, Castelnovo ne Monti, Reggio Emilia, Italy
2. Week Hospital, Pietro Barilla Children’s Hospital, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
3. Pediatric Gastroenterology, Pietro Barilla Children’s Hospital, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy