ETFA and multiple acyl-CoA dehydrogenase deficiency: Based on these findings, we analysed genes involved in multiple acyl-CoA dehydrogenase deficiency (ETFA (NM_000126), ETFB (NM_001985), and ETFDH (NM_004453)) and riboflavin transport and metabolism (SLC52A1 (NM_017986), SLC52A2 (NM_024531), SLC52A3 (NM_033409), SLC25A32 (NM_030780), FLAD1 (NM_025207), and RFK (NM_018339)) by next generation sequencing (NGS) approach.