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Fig. 3. —Graph shows life table analysis comparing secondary patency after pharmacomechanical thrombolysis of 39 "failed" grafts from our study ([UNK]) with overall institutional hemodialysis graft secondary patency of 81 "failed" grafts from the study of Valji et al. [3] ([UNK]). Although no significant difference between these survival curves exists, a trend toward late divergence of results is noted (Kaplan-Meier product-limit difference, p = 0.76).

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