title: The estimation of human renin-substrate concentration by radioimmunoassay of angiotensin I.
mesh_terms: D000804:Angiotensin II / Q000097:blood*; D001681:Biological Assay; D006801:Humans; D008722:Methods; D011863:Radioimmunoassay; D012083:Renin
chemical_list: D000804:Angiotensin II; D012083:Renin