1 Department of Clinical Epidemiology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan. Electronic address: [email protected].
2 Department of Medical Oncology and Palliative Care, Mitsubishi Kyoto Hospital, Kyoto, Japan.
3 Department of Palliative Medicine, Saitama Medical University International Medical Center, Saitama, Japan. Electronic address: [email protected].
4 Department of Psycho-oncology, Saitama Medical University International Medical Center, Saitama, Japan. Electronic address: [email protected].
5 Department of Psycho-oncology, Saitama Medical University International Medical Center, Saitama, Japan. Electronic address: [email protected].