1. Department of General Medicine Ogano Town Central Hospital Saitama Japan
2. Department of Psycho‐oncology Saitama Medical University International Medical Center Saitama Japan
3. Department of Pharmacoepidemiology Graduate School of Medicine and Public Health Kyoto University Kyoto Japan
4. Department of Supportive Medicine Saitama Medical University International Medical Center Saitama Japan
5. Department of General Medicine Saitama Medical University International Medical Center Saitama Japan
6. Department of Laboratory Medicine Saitama Medical University International Medical Center Saitama Japan
7. Ito Internal Medicine and Pediatric Clinic Fukuoka Japan
8. Department of Medical Oncology Mitsubishi Kyoto Hospital Kyoto Japan