SLC18A2 and pantothenate kinase-associated neurodegeneration: 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.