Is it better on top? The triumph of supra-annular valves.
Khan
S
S
Trento
A
A
D001021:Aortic Valve / Q000601:surgery*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D011474:Prosthesis Design