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. 2016 Apr 14;5:462. doi: 10.1186/s40064-016-2082-z

Fig. 1.

Fig. 1

Cumulative primary patency for AVF. The average patency time was 448.6 ± 271.3 days. The 1-year and 2-year patency rate were 64.0 and 51.2 %, respectively (n = 139)