1. Waller BF, Morgan RD, Iron M, Miller JM, Debruler RO. General concepts in the morphological evaluation of operatively excised valves In Waller BF,et al.Pathology of the heart and great vessels. New York: Churchill Livingstone 1988:1–42.
2. Vander Bel-kahn J, Becker AE. The surgical pathology of rheumatic and floppy mitral valves. Distinctive morphological features upon gross examination.Am J Surg Pathol 1986: 10:282–92.
3. Edwards JE. Pathology of mitral incompetenceIn Silver EMD, ed.Cardiovascular Pathology Vol 1. New York, Churchill Livingstone.
4. Olsen EG1 Rheumatic heart disease InPathology of the heart 2nd ed. London, MacMillan Press 1980: 145.
5. Goffin VA, Leclerc JL, Primo GC. Histopathology of aortic valve in patients with previous history of acute rheumatic fever. An analysis of 63 surgical specimens.Acta Cardiol 1984;39:329–39.