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  1. Reintervention for occluded metal stent in malignant bile duct obstruction: A prospective randomized trial comparing covered and uncovered metal stent
  2. Prognostic value of CA 19-9 kinetics during gemcitabine-based chemotherapy in patients with advanced cholangiocarcinoma
  3. Risk factors for perihilar cholangiocarcinoma: A hospital-based case-control study