Gilday, D L Lung scan patterns in pulmonary embolism versus those in congestive heart failure and emphysema. [electronic resource] - The American journal of roentgenology, radium therapy, and nuclear medicine Aug 1972 - 739-50 p. digital Publication Type: Journal Article ISSN: 0002-9580 Standard No.: 10.2214/ajr.115.4.739 doi Subjects--Topical Terms: Cardiomegaly--diagnosisHeart Failure--diagnosisHumansPulmonary Embolism--diagnosisPulmonary Emphysema--diagnosisRadiographyRadionuclide Imaging