1. Evaluation of the in vivo function of the Hancock porcine xenograft in the aortic position;Johnson;J Thorac Cardiovasc Surg,1978
2. Seven year experience with mounted porcine valves;Albert;Ann Surg,1977
3. Hemodynamic assessment of the glutaraldehyde-preserved porcine heterograft in the aortic and mitral positions;Lurie;Circulation,1977
4. Current status or porcine heterograft prostheses;Hannah;Circulation,1976
5. Heart valve replacement with the Hancock bioprosthesis;Cevese;Circulation,1976