Upper gastrointestinal tract malignant obstruction: initial results of palliation with a flexible covered stent.
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Y. Shim | Y. Do | I. Choo | H. Lim | S. Choo | H. Park | S. Suh | H. Lim | H. S. Park | S. H. Kim | Y. Shim | K. C. Park | Seung-Hoon Kim | Keun Chil Park