680963.fig.005a
(a)
680963.fig.005b
(b)
Figure 5: Stent patency in malignant lower biliary obstruction with chemotherapy. Chemotherapy group (a); 245 days for the new DLS group, and 95 days for the conventional DLS group, 344 days for the UMS group (log-rank test; ). Nonchemotherapy group (b); 127 days for the new DLS group, 100 days for the conventional DLS group, and 139 days for the UMS group (log-rank test; ).