ETFDH and multiple acyl-CoA dehydrogenase deficiency: Autosomal-recessive mutations in the EFTA (OMIM #608053), EFTB (OMIM #130410) and ETFDH genes (OMIM #231675) cause glutaric aciduria type II (GAII or multiple acyl-coenzyme A dehydrogenase deficiency), a metabolic condition characterized by the deficiency of the alpha or beta subunits of electron transfer flavoprotein or the electron transfer flavoprotein dehydrogenase.