title: Fractionation of erythropoietin by selective membrane permeability.
mesh_terms: D000818:Animals; D001681:Biological Assay; D003956:Dialysis; D004921:Erythropoietin / Q000032:analysis* / Q000652:urine; D006400:Hematocrit; D006452:Hemoglobinometry; D006801:Humans; D000860:Hypoxia; D008567:Membranes, Artificial; D008722:Methods; D051379:Mice; D010539:Permeability; D011086:Polycythemia / Q000209:etiology
chemical_list: D008567:Membranes, Artificial; D004921:Erythropoietin