About JUNG Hwoon-Yong
About Univ. Ulsan Coll. Medicine, Seoul, KOR
About Digestive Endoscopy
About human(primates)
About Early gastric cancer
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About Surgical treatment for digestive system diseases
About Surgical treatment for tumors
About 早期胃癌
About 内視鏡的切除
About 韓国
About 現状