_:vb50946423 . _:vb50946423 "A movement disease characterized by delayed psychomotor development and infantile or childhood onset of hyperkinetic involuntary movements, including chorea and athetosis that has_material_basis_in heterozygous mutation of GNAO1 on chromosome 16q13."^^ . _:vb50946423 "url:https://pubmed.ncbi.nlm.nih.gov/28357411/"^^ . _:vb50946423 . _:vb50946423 . _:vb50946423 . _:vb50946423 . _:vb50946423 "url:https://pubmed.ncbi.nlm.nih.gov/27068059/"^^ .