1. Aortic valve replacement: New techniques, hydrodynamics, and clinical results;Messmer;Surgery,1970
2. Aortic valve replacement: Two years' experience with the Björk-Shiley tilting-disc prosthesis;Messmer;Surgery,1972
3. The knotless method for prosthetic valve fixation;Wada;Int. Surg.,1966
4. A New Hingeless Valve;Wada,1969
5. Cardiac valve replacement with Wada-Cutter prosthesis;Wada;Ann. Thorac. Surg.,1972