_:vb50942147 . _:vb50942147 . _:vb50942147 . _:vb50942147 . _:vb50942147 . _:vb50942147 "url:https://www.ncbi.nlm.nih.gov/books/NBK1508/"^^ . _:vb50942147 . _:vb50942147 "url:https://www.omim.org/entry/128230"^^ . _:vb50942147 "A dystonia characterized by childhood-onset dystonia that responds to low doses of levodopa (L-dopa) and may be associated with parkinsonism at an older age and has_material_basis_in autosomal dominant inheritance of heterozygous mutation in the gene enconding GTP cyclohydrolase 1 (GCH1) on chromosome 14q13."^^ . _:vb50942147 . _:vb50942147 "url:https://ghr.nlm.nih.gov/condition/dopa-responsive-dystonia"^^ .