title: Erythropoietin assays in the diagnosis of polycythaemia: preliminary communication.
mesh_terms: D001681:Biological Assay; D002478:Cells, Cultured; D004921:Erythropoietin / Q000097:blood*; D006801:Humans; D011086:Polycythemia / Q000097:blood / Q000175:diagnosis*
chemical_list: D004921:Erythropoietin