1 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.
2 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, Cluj-Napoca, Romania.
3 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; University Hospital of Split, Medical School of Split, Split, Croatia.
4 Italian Society of Pediatrics (SIP), Rome, Italy; Institute of Pediatrics, Catholic University Medical School, Rome, Italy.
5 Residency Course in Pediatrics, University of Foggia, Foggia, Italy.
6 European Confederation of Primary Care Paediatricians (EPCP), Lyone, France; Primary Care Health Center Potosi, Madrid, Spain.
7 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Italian Federation of Pediatricians, Rome, Italy.
8 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany; Russian Medical Research and Scientific Medical University, Moscow, Russia.
9 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.