In addition, several variants in other dystonia related genes were also identified, including GCH1 c.638_641del in patient 4, PINK1 c.1474C>T and c.938C>T in patient 7, SGCE c.304C>T in patient 26, VPS13A c.7867C>T in patient 23, and ANO3 c.970A>G in patient 40. Here, GCH1 is linked to Dystonia.