Objective: To assess the incidence of occlusion-free survival of multiple plastic biliary stents and the rate of premature occlusion if left in longer than 6 months.
目的：评价多个塑料胆道支架的非阻塞率以及放置超过6个月支架的早期支架堵塞率。
Objective: To assess the incidence of occlusion-free survival of multiple plastic biliary stents and the rate of premature occlusion if left in longer than 6 months.
目的：评价多个塑料胆道支架的非阻塞率以及放置超过6个月支架的早期支架堵塞率。
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