1. Atrioventricular valve replacement with the Hancock porcine xenograft: a five-year clinical experience;McIntosh;Surgery,1975
2. Evaluation of hemolysis following replacement of atrioventricular valves with porcine xenograft (Hancock) valves;Rhodes;J Thorac Cardiovasc Surg,1977
3. Clinical and hemodynamic comparison of Kay-Shiley, Starr-Edwards No. 6520, and Reis-Hancock porcine xenograft mitral valves;Brown;Surgery,1974
4. Is the Hancock porcine valve the best cardiac valve substitute today?;Davila;Ann Thorac Surg,1978
5. Heart valve replacement with the Hancock bioprosthesis: analysis of long-term results;Cevese;Circulation,1976