Division of Gastroenterology;
Warren Alpert Medical School of Brown University;
Providence;
RI 02903;
United States;
Department of Internal Medicine;
Warren Alpert Medical School of Brown University;
Providence;
RI 02903;
United States;
Non-alcoholic fatty liver disease; Fatty liver; Metabolic syndrome; Cirrhosis; national health and nutrition examination survey; Pediatric; Adolescents;