Aortic Valve ReplacementA Prospective Randomized Evaluation of Mechanical Versus Biological Valves in Patients Ages 55 to 70 Years
Paolo Stassano, MD*,*,
Luigi Di Tommaso, MD*,
Mario Monaco, MD ,
Francesco Iorio, MD*,
Paolo Pepino, MD ,
Nicola Spampinato, MD* and
Carlo Vosa, MD*
* Cardiac Surgery Unit, University Federico II, School of Medicine, Naples, Italy
Cardiac Surgery Unit, Istituto Clinico Pineta Grande, Castelvolturno, Italy
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