Aortic valve allografts in sheep.
D000818:Animals; D001021:Aortic Valve / Q000637:transplantation*; D005260:Female; D008943:Mitral Valve / Q000601:surgery*; D009206:Myocardium / Q000473:pathology; D009336:Necrosis; D012756:Sheep; D014184:Transplantation, Homologous