1 Italian Society of Pediatrics (SIP), Campus Bio-Medico University Medical School, Rome, Italy.
2 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; University of Istanbul, Istanbul University Cerrahpaşa, Medical Faculty, Istanbul, Turkey.
3 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Italian Federation of Pediatricians, Rome, Italy.
4 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; 2nd Pediatric Clinic, University of Medicine and Pharmacy Iuliu Hatieganu, Romanian Society of Social Pediatrics, Cluj-Napoca, Romania.
5 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Medical School of Split, University Hospital of Split, Split, Croatia.
6 Department of Biomedical Sciences, University of Foggia, Foggia, Italy.
7 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Russian Medical Research and Scientific medical University of Moscow, Russian Federation, Moscow, Russia.
8 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Department of Pediatrics, Scientific Institute "Casa Sollievo della Sofferenza", University of Foggia, Foggia, Italy. Electronic address: mpm@unifg.it.