Fig. 2From: Characteristics of four commonly used self-expanding biliary stents: an in vitro studyLine graphs illustrating the RRF and COF of uncovered Wallflex™ Biliary RX Stent (a), EGIS Single Bare Biliary Stent (b), Zilver 635® Biliary Self-Expanding Stent (c), and E-Luminexx™ Biliary Stent (d) RRF Radial resistive force, COF Chronic outward forceBack to article page