Autosomal recessive: This subgroup includes forms, such as DYT-ATP7B, also known as Wilson disease (Bull et al. 1993), NBIA/DYT-PANK2 or pantothenate kinase-associated neurodegeneration (PKAN) (Zhou et al. 2001), and NBIA/DYT/PARKa-PLA2G6 or PLA2G6-associated neurodegeneration (PLAN) (Morgan et al. 2006). This evidence concerns the gene PLA2G6 and Wilson disease.