1 Postgraduate Pediatric Residency Program, Residents Committee, University of Foggia, Foggia, Italy; European Paediatric Association, Union of National European Paediatric Societies and Associations, Berlin, Germany. Electronic address: mpm@unifg.it.
2 European Paediatric Association, Union of National European Paediatric Societies and Associations, Berlin, Germany; Children's Hospital, Hannover Medical School, Hannover, Germany.
3 Postgraduate Pediatric Residency Program, Residents Committee, University of Foggia, Foggia, Italy.
4 Undergraduate School, Bachelor Course in Economics, Management and Finance, Bocconi University, Milan, Italy.