title: A quantitative evaluation of heart size measurements from chest roentgenograms.
mesh_terms: D000328:Adult; D000790:Angiocardiography; D001466:Barium Sulfate; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000000981:diagnostic imaging*; D006325:Heart Atria; D006801:Humans
chemical_list: D001466:Barium Sulfate