Aortic Valve Replacement with a 19-mm Perimount Magna/Magna Ease Bioprosthesis has Comparable Early and Late Outcomes with Greater Than a 19-mm Prosthesis in Patients with Aortic Stenosis: A Propensity Score-matched Analysis - Okamura, H.; Yamaguchi, A.; Kimura, N.; Yuri, K.; Matsumoto, H.; Adachi, K.; Adachi, H. (The Thoracic and Cardiovascular Surgeon, 2016)