Pediatric Unit, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia, Modena, Italy. lorenzo.iughetti@unimore.it. Post-graduate School of Pediatrics, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia. viola.trevisani@gmail.com. Post-graduate School of Pediatrics, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia. umberto.cattini@gmail.com. Pediatric Unit, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia. bruzzi.patrizia@aou.mo.it. Pediatric Unit, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia. laura.lucaccioni@unimore.it. Pediatric Unit, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia. madeo.simona@aou.mo.it. Pediatric Unit, Department of Medical and Surgical Sciences of the Mother, Children and Adults. University of Modena and Reggio Emilia. barbara.predieri@unimore.it.