1. Westaby S, Bosher C (1997) Development of surgery for valvular heart disease. In: Landmarks in cardiac surgery. Isis medical media, Oxford, pp 139–174
2. Murray G, Roschlau W, Lougheed W (1956) Homologous aortic-valve-segment transplants as surgical treatment for aortic and mitral insufficiency. Angiology 7:466
3. Murray G (1960) Aortic valve transplants. Angiology 11:99
4. Beall ACJ, Morris GJ, Cooley D, De Bakey M (1961) Homotransplantation of the aortic valve. J Thorac Cardiovasc Surg 42:497
5. Heimbecker Ro, Baird RJ, Lajos TZ, Varga AT, Greenwood WF (1962) Homograft replacement of the human mitral valve. A preliminary report. Can Med Assoc J 5(86):805–809