_:vb50940695 . _:vb50940695 "url:https://www.ncbi.nlm.nih.gov/pubmed/29514032"^^ . _:vb50940695 . _:vb50940695 . _:vb50940695 . _:vb50940695 . _:vb50940695 "A primary polycythemia characterized by autosomal dominant inheritance that has_material_basis_in heterozygous mutation in the EPO gene on chromosome 7q21."^^ .