Comment on

• Polytetrafluoroethylene versus human umbilical vein in above-knee femoropopliteal bypass: six-year results of a randomized clinical trial.

  Aalders GJ, van Vroonhoven TJ. Aalders GJ, et al. J Vasc Surg. 1992 Dec;16(6):816-23; discussion 823-4. J Vasc Surg. 1992. PMID: 1460707 Clinical Trial.
• Improved method to create the common ostium variant of the distal arteriovenous fistula for enhancing crural prosthetic graft patency.

  Dardik H, Silvestri F, Alasio T, Berry S, Kahn M, Ibrahim IM, Sussman B, Wolodiger F. Dardik H, et al. J Vasc Surg. 1996 Aug;24(2):240-8. doi: 10.1016/s0741-5214(96)70099-x. J Vasc Surg. 1996. PMID: 8752035
• A comparative evaluation of polytetrafluoroethylene, umbilical vein, and saphenous vein bypass grafts for femoral-popliteal above-knee revascularization: a prospective randomized Department of Veterans Affairs cooperative study.

  Johnson WC, Lee KK. Johnson WC, et al. J Vasc Surg. 2000 Aug;32(2):268-77. doi: 10.1067/mva.2000.106944. J Vasc Surg. 2000. PMID: 10917986 Clinical Trial.
• A prospective randomized trial comparing vein with polytetrafluoroethylene in above-knee femoropopliteal bypass grafting.

  Burger DH, Kappetein AP, Van Bockel JH, Breslau PJ. Burger DH, et al. J Vasc Surg. 2000 Aug;32(2):278-83. doi: 10.1067/mva.2000.106496. J Vasc Surg. 2000. PMID: 10917987 Clinical Trial.
• P values may lack power: the choice of conduit for above-knee femoropopliteal bypass graft.

  Mills JL Sr. Mills JL Sr. J Vasc Surg. 2000 Aug;32(2):402-5. doi: 10.1067/mva.2000.106495. J Vasc Surg. 2000. PMID: 10918003 No abstract available.