Pediatric Clinic;
Department of Surgical;
Microsurgical and Medical Sciences;
University of Sassari;
07100 Sassari;
Italy;
Pediatrics of AORN Santobono-Pausilipon;
80123 Naples;
Italy;
Pediatrics;
Department of Medicine;
Surgery and Dentistry'Scuola Medica Salernitana';
University of Salerno;
84081 Baronissi;
Italy;
ELFID European Laboratory for the Investigation of Food Induced Disease;
80138 Naples;
Italy;
Non-alcoholic; fatty; liver; disease; Childhood; obesity; Non-alcoholic; steatohepatitis; Hepatic; metabolic; syndrome; Non-alcoholic; fatty; liver; disease; diagnosis;