| Double Density Sign DOWNLOAD FACT SHEET IN PDF References: 1) Marshall GB, Farnquist BA, MacGregor JH. Signs in Thoracic Imaging. J Thorac Imaging 2006;21(1):76-90 [PDF] 2) Higgins CB, Reinke RT, Jones NE. Left Atrial Dimension on the Frontal Thoracic Radiograph: A Method for Assessing Left Atrial Enlargement. AJR 1976;130:251-255 [PDF] |
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