电磁碎石组和液电碎石组波源之间无显著差异（P>0.05）。
The increase of data in the electromagnetic group were not significantly different from those in the electro hydraulic group(P>0.05).
结论液电碎石对胆管壁有一定的损伤，但如果操作方式正确，液电碎石是一种有效的、安全的碎石方法。
Conclusion Electrohydraulic lithotripsy causes injury to gallbladder wall in a certain extent; however, it is still an effective and safe surgery if the man is correct.
结论液电碎石对胆管壁有一定的损伤，但如果操作方式正确，液电碎石是一种有效的、安全的碎石方法。
Conclusion Electrohydraulic lithotripsy causes injury to gallbladder wall in a certain extent; however, it is still an effective and safe surgery if the man is correct.
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