1 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Department of Pediatrics, Institute for Scientific Research Casa Sollievo, University of Foggia, Foggia, Italy.
2 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Romanian Society of Social Pediatrics, Cluj, Romania; Second Pediatric Clinic, University of Medicine and Pharmacy, Cluj-Napoca, Romania.
3 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Department of Pediatrics, University of Health Sciences, Istanbul, Turkey.
4 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Albanian Society of Pediatrics, Tirana, Albania.
5 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Research Center of Laboratory Medicine, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
6 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Department of Pediatrics, Cerrapasha University, Istanbul, Turkey; Turkish Pediatric Association, Istanbul, Turkey.
7 European Pediatric Association, Union of National European Pediatric Societies and Associations, Berlin, Germany; Department of Pediatrics, Institute for Scientific Research Casa Sollievo, University of Foggia, Foggia, Italy; Italian Academy of Pediatrics, Milan, Italy; GE Ghirardi Foundation, Piazzola sul Brenta, Padua, Italy. Electronic address: mpm@unifg.it.