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1·Methods: in APC300 mirror special-purpose argon knife which produces with German ERBE Corporation, to pathology confirmation gastrointestinal tract polyp good argon ion coagulation technique.

方法：采用德国ERBE公司生产的APC300型内镜专用氩气刀，对病理证实的胃肠道息肉行氩离子凝固术。