3[2]Herhahdez D,Diaz.Subclavian Vascular access stenosis in dialysis patients:Natural history and risk factors.J Am Soc Nephro,1998,1(9):1507-1510
4[6]Ezzahiri R,Lemson MS,Kitalaar PJ.Hacmodialysis vascular access and fistula surveillance methods in the Netherlands.Nephrol Dial Transplant,1999,14(9):2110-2115