_:vb50945180 . _:vb50945180 . _:vb50945180 . _:vb50945180 "A primary polycythemia characterized by erythrocytosis and in some cases hemolytic anemia that has_material_basis_in homozygous or compound heterozygous mutation in BPGM on chromosome 7q33."^^ . _:vb50945180 . _:vb50945180 "url:https://www.ncbi.nlm.nih.gov/pubmed/2542247"^^ . _:vb50945180 .