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2. Influence of mitral valve surgery on tricuspid incompetence concomitant with mitral valve disease;Simon;Circulation,1980
3. Is tricuspid valve repair necessary?;Duran;J Thorac Cardiovasc Surg,1980
4. Open mitral valvotomy: effect of preoperative factors on result;Smith;J Thorac Cardiovasc Surg,1981
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