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H. Ito, A Kitabatake, J Tanouchi, S Nakatani, K Ishihara, K Fujii, M Uematsu, Y Yoshida, N Tominaga, M Hori, M Tada, M Inoue, T Kamada. "-72-CROSS SECTIONAL AREA OF AORTIC REGURGITANT JET AS AN ESTIMATE OF THE SEVERITY OF AORTIC REGURGITATION." Japanese Circulation Journal - English Edition 50.6 (1986) 480