• Untreated allograft saphenous veins used for arterial bypass failed in ten of 11 cases. The precise cause of failure was uncertain, but immune reactions of the recipient against the allograft seemed to be related to failure.
(Arch Surg 113:591-593, 1978)
Stephen M, Sheil AGR, Wong J. Allograft Vein Arterial Bypass. Arch Surg. 1978;113(5):591-593. doi:10.1001/archsurg.1978.01370170053009