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2. 3) WGO-OMGE/OMED, “Practice Guideline for Endoscope Disinfection,” Munich, Dec. 14, 2005.
3. 4) Japan Society of Environmental Infectious, “Multi-society Guideline for Cleaning-Disinfection of Endoscope,” Tokyo, May 23, 2008.
4. 5) Japan Gastroenterological Endoscopy Technicians Society, “Guideline for Cleaning-Disinfection of Endoscope” 2nd edition, §VI Safety of Cleaning Water, 2004.