1 Department of Pediatrics, Scientific Institute "Casa Sollievo della Sofferenza", University of Foggia, Foggia, Italy; European Pediatric Association-Union of National European Pediatric Societies and Associations (EPA-UNEPSA), Berlin, Germany. Electronic address: mpm@unifg.it.
2 European Pediatric Association-Union of National European Pediatric Societies Associations (EPA-UNEPSA), Berlin, Germany; Children's Hospital, Hannover Medical School, Hannover, Germany.
3 Department of Pediatrics, Scientific Institute "Casa Sollievo della Sofferenza", University of Foggia, Foggia, Italy.
4 Institute of Pediatrics, Catholic University Medical School and, Campus Bio-Medico University Medical School, Rome, Italy.
5 Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
6 European Pediatric Association-Union of National European Pediatric Societies and Associations (EPA-UNEPSA), Berlin, Germany; Second Pediatric Clinic, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania.