Prospective randomized study on bilateral above-knee femoropopliteal revascularization: polytetrafluoroethylene graft versus reversed saphenous vein Enzo Ballotta, MD, Laura Renon, MD, Michele Toffano, MD, Giuseppe Da Giau, MD Journal of Vascular Surgery Volume 38, Issue 5, Pages 1051-1055 (November 2003) DOI: 10.1016/S0741-5214(03)00608-6
Figure Primary “assisted” patency rate over time for saphenous vein grafts (diamonds) versus polytetrafluoroethylene grafts (squares). Standard error is less than 5% for all time points (Kaplan-Meier method). Journal of Vascular Surgery 2003 38, 1051-1055DOI: (10.1016/S0741-5214(03)00608-6)