Summary: The purpose of this study is to learn more about Neurodegeneration with Brain Iron Accumulation (NBIA) Disorders. Data is being collected on three types of NBIA disorders:~Pantothenate Kinase-Associated Neurodegeneration (PKAN), PLA2G6-associated Neurodegeneration (PLAN) and Beta-propeller Protein-associated Neurodegeneration (BPAN). The study will (1) collect information about how symptoms and fi...