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4. Assessment of mitral valvar stenosis by echocardiography: utility of various methods before and after mitral valvotomy. Nair M, Arora R, Mohan JC, Kalra GS, Sethi KK, Nigam M, Khalilullah M. Int J Cardiol; 1991 Sep; 32(3):389-94. PubMed ID: 1791092 [Abstract] [Full Text] [Related]
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11. Quantitative assessment of lumen area stenosis by Doppler echocardiography and application of continuity equation. Yamagishi M, Nakatani S, Miyatake K. Echocardiography; 1994 May 11; 11(3):293-304. PubMed ID: 10147401 [Abstract] [Full Text] [Related]
12. Comparison of proximal isovelocity surface area method and pressure half time method for evaluation of mitral valve area in patients undergoing balloon mitral valvotomy. Sunil Roy TN, Krishnan MN, Koshy C, Sajeev CG, Francis J, Velayudhan CC, Venugopal K. Echocardiography; 2005 Oct 11; 22(9):707-12. PubMed ID: 16194163 [Abstract] [Full Text] [Related]
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