_:vb50944351 . _:vb50944351 . _:vb50944351 . _:vb50944351 . _:vb50944351 "url:https://www.ncbi.nlm.nih.gov/pubmed/15241655"^^ . _:vb50944351 "A dystonia characterized by sustained muscle contractions with diurnal fluctuations, axial hypotonia, oculogyric crises, delays in motor and cognitive development and severe dopamine and serotonin deficiencies that has_material_basis_in mutation in the SPR gene on chromosome 2p resulting in sepiapterin reductase deficiency."^^ . _:vb50944351 "url:https://www.ncbi.nlm.nih.gov/pubmed/11443547"^^ . _:vb50944351 . _:vb50944351 . _:vb50944351 "url:https://www.ncbi.nlm.nih.gov/pubmed/22522443"^^ . _:vb50944351 "url:https://ghr.nlm.nih.gov/condition/sepiapterin-reductase-deficiency"^^ .