Among the dystonic children, 9 were diagnosed with CP, 3 with pantothenate kinase-associated neurodegeneration (PKAN), 3 with KMT2B, 2 with SLC18A2-related dystonia, 2 with WARS2, and 2 with suspected neurotransmitter disorder. The gene discussed is KMT2B; the disease is pantothenate kinase-associated neurodegeneration.