1. Department of Nephrology; Osaka Saiseikai Nakatsu Hospital; Osaka Japan
2. Department of Gastroenterology and Hepatology; Osaka Saiseikai Nakatsu Hospital; Osaka Japan
3. Clinical Engineering; Osaka Saiseikai Nakatsu Hospital; Osaka Japan
4. Department of Gastroenterology and Hepatology; Kobe Hokuto Hospital; Kobe Japan