1. Rehn L: Über penetrierende herzwanden und herzhant. Arch Klin Chir 55: 315, 1897.
2. Hufnagel CA, Harvey WP. The surgical correction of aortic insufficiency. Bull Georgetown U Med Cent, 6: 60, 1953.
3. Lefrak EA, Starr A: Cardiac valve prostheses, New York, Appleton-Century-Crofts, 1979.
4. Starr A: Total mitral valve replacement: fixation and thrombosis. Surg Forum, 11: 258, 1960.
5. Starr A, Edwards ML: Mitral replacement: The shielded ball-valve prosthesis. J Thorac Cardiovasc Surg, 42: 673, 1961.