Artificial Heart Valves: Biological, Aortic, Ø 19 Mm, From Biological Tissue, Three-Stemmed, Supraannular Implantation, Suture Fixation, Open Surgery, Mri-Compatible, Resistant To Calcification, Without Transcatheter Implantation; Artificial Heart Valves: Biological, Aortic, Ø 21 Mm, With ... More