1. Department of Palliative Medicine and Gastroenterology, International University Health and Welfare Narita Hospital, 852, Hatakeda, Narita 286-0124, Japan
2. Department of Gastroenterology, International University Health and Welfare Graduate School of Medicine, 4-3, Kozunomori, Narita 286-0048, Japan
3. Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
4. Department of Internal Medicine, Yokohama Clinic, Kanagawa Dental University, 3-31-6 Tsuruya-cho, Kanagawa, Yokohama 221-0835, Japan
5. School of Nursing, Ishikawa Prefectural Nursing University, 1-1 Gakuendai, Kahoku 929-1210, Japan
6. Department of Gastroenterology, National Hospital Organization Hakodate National Hospital, 18-16, Kawahara-cho, Hakodate 041-8512, Japan
7. Department of Gastroenterology, Sapporo Cancer Screening Center, Public Interest Foundation Hokkaido Cancer Society, 1-15, Kita-26 Higashi-14, Higashi-ku, Sapporo 065-0026, Japan
8. Research Center for Implementation Nursing Science Initiative, Fujita Health University, Aichi 470-1192, Japan
9. Department of Laboratory, Yokohama Clinic, Kanagawa Dental University, 3-31-6 Tsuruya-cho, Yokohama 221-0835, Japan
10. Department of Clinical Laboratory, National Hospital Organization Hakodate National Hospital, Hokkaido 041-8512, Japan
11. Department of Radiological Technology, Coloproctology Center Takano Hospital, Kumamoto 862-0971, Japan
12. Division of Ultrasound and Department of Diagnostic Imaging, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
13. Matsushima Hospital Proctology Center, 9-11, Honcho, Tobe, Nishi-Ward, Yokohama 220-0041, Japan
14. Division of Endoscopy and Ultrasonography, Department of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama 700-8505, Japan
15. Department of Nursing, Graduate School of Medicine, Yokohama City University, Yokohama 236-0027, Japan