The application of digestive endoscopy is not only for diagnosis but for therapy. Therapeutic digestive endoscopy is a minimal invasive treatment for gastrointestinal diseases. Minimal invasive treatment has advantage of less medical cost and admission period. Recently, many new advanced diagnostic digestive endoscopy techniques have been developed. These new diagnostic tools create a new field of early detection of gastrointestinal malignancy. Therefore, a better outcome of gastrointestinal diseases is expected.
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