There were 8 different inherited metabolic disorders including GLUT1 deficiency, SURF1 Leigh’s disease, PDHC deficiency, DNAJC19 disease, ND3 mitochondrial encephalopathy, NCL type 2, riboflavin transporter deficiency, and 3-hydroxy-3-methylglutaryl CoA synthase 2 deficiency [6]. Here, SURF1 is linked to hyperinsulinemic hypoglycemia, familial, 4.