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  • Title: Vascular access for chronic hemodialysis: polytetrafluoroethylene (PTFE) versus bovine heterograft.
    Author: Butler HG, Baker LD, Johnson JM.
    Journal: Am J Surg; 1977 Dec; 134(6):791-3. PubMed ID: 339765.
    Abstract:
    Between May 1975 and March 1977, 193 bovine heterografts and 184 polytetrafluoroethylene (PTFE) grafts (Impragrafts) have been placed for hemodialysis access. A comparison of these materials demonstrates that Impragrafts have significantly fewer late thromboses, increased resistance to infection, and comparable longevity, and they are easier to repair.
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