title: The use of free-hand unstented aortic valve allografts for replacement of the aortic valve.
authors.affiliation: Section of Cardiac Surgery, University of Chicago Hospitals, Illinois 60637.
authors.forename: R B
authors.initials: RB
authors.lastname: Karp
mesh_terms: D001011:Aorta / Q000601:surgery; D001021:Aortic Valve / Q000601:surgery / Q000637:transplantation*; D015925:Cryopreservation / Q000379:methods; D005615:Freezing; D006085:Graft Survival; D006349:Heart Valve Diseases / Q000601:surgery; D006801:Humans; D009926:Organ Preservation / Q000379:methods; D015607:Stents; D014022:Tissue Survival; D009927:Tissue and Organ Procurement; D014184:Transplantation, Homologous / Q000379:methods