1 European Pediatric Association/Union of National European Pediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Department of Medicine and Surgery, University Campus Bio-Medico, Rome, Italy; Operative Research Unit of Pediatrics, Fondazione Policlinico Universitario Campus Bio-Medico, Roma, Italy; Italian Academy of Pediatrics, Milan, Italy.
2 Operative Research Unit of Pediatrics, Fondazione Policlinico Universitario Campus Bio-Medico, Roma, Italy.
3 Institute of Pediatric, Catholic University, Rome, Italy.
4 European Pediatric Association/Union of National European Pediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Italian Academy of Pediatrics, Milan, Italy; Department of Pediatrics, University of Palermo, Palermo, 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; Turkish Pediatric Association, Istanbul, Turkey.
7 European Pediatric Association/Union of National European Pediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Pediatric Society of Albania, Tirana, Albania.
8 European Pediatric Association/Union of National European Pediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Residency Course of Pediatrics, "Casa Sollievo della Sofferenza", University of Foggia, Foggia, Italy.
9 European Pediatric Association/Union of National European Pediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Italian Academy of Pediatrics, Milan, Italy; Residency Course of Pediatrics, "Casa Sollievo della Sofferenza", University of Foggia, Foggia, Italy. Electronic address: [email protected].