Randomized trial in malignant biliary obstruction: Plastic vs partially covered metal stents

Figure 1 Consolidated standards of reporting trials diagram. SEMS: Self-expandable metal stent.

Figure 2 Survival analysis. A: Time to stent failure for partially covered self-expanding metal stent and plastic stent patient groups; B: Time to death for partially covered self-expanding metal stent and plastic stent patient groups.