CHAPMAN, J M Validity of 70 mm. photofluorograms of the chest in screening a population for heart disease. [electronic resource] - Journal of chronic diseases Nov 1960 - 521-33 p. digital Publication Type: Journal Article ISSN: 0021-9681 Standard No.: 10.1016/0021-9681(60)90118-1 doi Subjects--Topical Terms: Heart Diseases--diagnostic imagingHumansPhotofluorographyThoracic Surgical ProceduresThorax