1 Hideki Onishi, MD, PhD, Departments of Psycho-oncology, Saitama Medical University International Medical Center, Saitama, Japan; Akira Yoshioka, MD, PhD, Department of Medical Oncology and Palliative Care, Mitsubishi Kyoto Hospital, Kyoto, Japan; Izumi Sato, MPH, PhD, Department of Clinical Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; Nozomu Uchida, MD, Department of General Medicine, Ogano Town Central Hospital, Saitama, Japan; and Mayumi Ishida, CP, PhD, Departments of Psycho-oncology, Saitama Medical University International Medical Center, Saitama, Japan.