1 Department of Nephrology, Baoding No. 1 Central Hospital of Hebei Medical Universtiy, Baoding Great Wall North Street No.320, Baoding, 071000, Hebei, China. lxd_765@sina.com.
2 Department of Vascular Surgery, Baoding No. 1 Central Hospital of Hebei Medical Universtiy, Baoding, 071000, Hebei, China.
3 Department of Nephrology, Baoding No. 1 Central Hospital of Hebei Medical Universtiy, Baoding Great Wall North Street No.320, Baoding, 071000, Hebei, China.