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Endoscopic ultrasonography-guided gallbladder drainage. A: Endoscopic ultrasonography showing that the gallbladder was punctured by the needle; B: Guidewire was advanced through the needle into the gallbladder; C: A self-expandable metallic stent (SEMS) was placed between the gallbladder and the duodenum; D: Endoscopic view showing that distal end of a SEMS was located at the stomach.
