N → another name for gallstone
Long-term fasting, lack of nutrition, can cause gallbladder in YuZhi bile, stone formation.
长期禁食，缺乏营养，可导致胆囊内胆汁郁滞，结石形成。
Conclusion Recurrent or retained bile duct stone is the main cause leading to biliary reoperation.
结论胆道再次手术的主要原因仍是胆道结石残留或复发。
Cholecystectomy bile duct stone remnants of the re-operation is safe and effective.
胆囊切除术后胆道残余结石的再手术是安全有效的。
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