title: Renin substrate (angiotensinogen) as a possible erythropoietin precursor.
mesh_terms: D000808:Angiotensinogen / Q000276:immunology*; D000906:Antibodies / Q000032:analysis / Q000276:immunology; D001932:Brain Neoplasms / Q000032:analysis; D003429:Cross Reactions; D004591:Electrophoresis, Polyacrylamide Gel; D004921:Erythropoietin / Q000276:immunology*; D005260:Female; D005455:Fluorescent Antibody Technique; D006394:Hemangiosarcoma / Q000032:analysis; D006801:Humans; D008970:Molecular Weight; D011863:Radioimmunoassay
chemical_list: D000906:Antibodies; D000808:Angiotensinogen; D004921:Erythropoietin