Long term results after aortic valve replacement with the Bravo 400 stentless xenograft ANN. THORACIC SURGERY 1 August Aug 2005 20 years ago Polvani G. - Barili F. - Dainese L. - Muratori M. - Porqueddu M. - Sala A. - Biglioli P. anno 2005 - Impact Factor 2,041