1. O’Brien MF, Clarebrough JK (1966) Heterograft aortic valve transplantation for human valve disease. Med J Aust 2:228–230
2. O’Brien MF (1995) Composite stentless xenograft for aortic valve replacement. Clinical evaluation of function. Ann Thorac Surg 60:S406–S409
3. Hvass U, Palatianos GM, Frassani R, Puricelli C, O’Brien M (1999) Multi-center study of stentless valve replacement in, the small aortic root. J Thorac Cardiovasc Surg 117:267–272
4. Rao V, Jamieson WR, Ivanov J, Armstrong S, David TE (2000) Prosthesis-patient mismatch affects survival after aortic valve replacement. Circulation 102(Suppl 3): III-5–III-9
5. Jin XY, Zhang Z, Gibson DG, Yacoub MH, Pepper JR (1996) Changes in left ventricular function and hypertrophy following aortic valve replacement using aortic homografts, stentless or stented valves. Ann Thorac Surg 62:683–690