RAVARI , H., KAZEMZADE , G.H., MODAGHEGH , M.H.S. and KHASHAYAR , P. 2010. Patency rate and complications of polytetrafluoroethylene grafts compared with polyurethane grafts for hemodialysis access. Upsala Journal of Medical Sciences. 115, 4 (Mar. 2010), 245–248. DOI:https://doi.org/10.3109/03009731003678562.