1. Department of Psychiatry and Cognitive-Behavioral Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
2. Center for Psycho-oncology and Palliative Care, Nagoya City University Hospital, Nagoya, Japan
3. Psycho-Oncology Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, Tokyo, Japan
4. Department of Palliative Medicine, Kobe University Graduate School of Medicine, Kobe, Japan