[1] Regina Margher Childrens Hosp, Dept Pediat Emergency, Turin, Italy
[2] Meyer Childrens Hosp IRCCS, Dept Emergency Med, Florence, Italy
[3] Meyer Childrens Hosp IRCCS, Trauma Ctr, Florence, Italy
[4] Federaz Italiana Med Pediat FIMP, Natl Hlth Care Serv, Naples, Italy
[5] Federaz Italiana Med Pediat FIMP, Natl Hlth Care Serv, Reggio Emilia, Italy
[6] Univ Milan, Dept Pathophysiol & Transplantat, Milan, Italy
[7] Fdn IRCCS CaGranda Osped Maggiore Policlin, Pediat Unit, Milan, Italy
[8] IRCCS Osped Pediatr Bambino Gesu, ERN RITA Ctr, Div Rheumatol, Rome, Italy
[9] Univ Naples Federico II, Dept Neurosci, Div Pharmacol, Naples, Italy
[10] Univ Naples Federico II, Dept Translat Med Sci, Sect Pediat, Naples, Italy
[11] Italian Soc Pediat SIP, Rome, Italy