Fig. 2From: Does ligation of the dorsal branch of the cephalic vein affect the patency of a distal forearm arteriovenous fistula? A randomised studyKaplan-Meier survival analysis for evaluation of the differences in the primary and secondary patency rates in patients with and without ligation of the dorsal branch; a Kaplan-Meier survival analysis for the primary patency rate; b Kaplan-Meier survival analysis for the secondary patency rateBack to article page