1 Pediatric Medical School, University of Bologna.
2 Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant'Orsola University Hospital.
3 Pediatric Dermatology Outpatient Service, Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, Sant'Orsola University Hospital.
4 Pediatric Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant'Orsola University Hospital.
5 Pediatric Emergency Unit, Scientific Institute for Research and Healthcare (IRCCS), Sant'Orsola University Hospital, Bologna, Italy.