1. Department of Medical Oncology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Fukuoka 810‑8563, Japan
2. Department of Nursing, Faculty of Health Sciences, Junshin Gakuen University, Fukuoka, Fukuoka 815‑0036, Japan
3. Department of Gastrointestinal Surgery, National Hospital Organization Kyushu Medical Center, Fukuoka, Fukuoka 810‑8563, Japan
4. Department of Comprehensive Clinical Oncology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Fukuoka 812‑8582, Japan