TY - DATA AU - Cho,Joo Young ED - American Society for Gastrointestinal Endoscopy TI - Endoscopic submucosal dissection for gastric superficial tumors T2 - ASGE Endoscopic Learning Library PY - 2006/// CY - Oak Brook, Ill. PB - American Society for Gastrointestinal Endoscopy KW - Digestive System Surgical Procedures KW - Endoscopy KW - methods ER -