title: Cryopreserved bioprostheses.
abstract: The process of cryopreservation is described. Three types of tissue are then considered: allograft heart valves, allograft veins and the musculoskeletal soft tissues of the knee. The problems with each of these tissue types are examined.
authors.affiliation: CryoLife Inc., Marietta, GA.
authors.forename: R T
authors.initials: RT
authors.lastname: McNally