_:vb50943374 . _:vb50943374 "A long QT syndrome that has_material_basis_in dominant inheritance of mutation in the SNTA1 gene on chromosome 20q11.21."^^ . _:vb50943374 . _:vb50943374 . _:vb50943374 . _:vb50943374 "url:https://www.ncbi.nlm.nih.gov/pubmed/19684871"^^ . _:vb50943374 .