Sometimes the patient looks and smells just like a common duct stone but no filling defect or stone is seen in the biliary tree on cholangiogram.
有时，患者症状象总胆管结石，但是胆管造影在胆管分支未见充盈缺损。
The present article by Lee et al1 further supports the idea that an es may be beneficial in certain situations, even with a normal cholangiogram.
由李等人撰写的论文支持这样的观点，即es即便在正常胆管造影患者中在某些情况下也是有益的。
Three previous studies examined the issue of an es with an inconclusive cholangiogram before the present study by Lee et al1 and found mixed results.
在李等人所做的研究之前，旨在评估对不确定的胆管造影结果行es的三个研究发现了混合的结果。
Three previous studies examined the issue of an es with an inconclusive cholangiogram before the present study by Lee et al1 and found mixed results.
在李等人所做的研究之前，旨在评估对不确定的胆管造影结果行es的三个研究发现了混合的结果。
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