1. Department of Family Medicine, Family Medicine; Seoul National University Hospital; Seoul Korea
2. Cancer Survivorship Clinic; Seoul National Center University Hospital; Seoul Korea
3. Hospice & Palliative Care Branch; National Cancer Control Institute, National Cancer Center; Goyang-si Goyeonggi-do Korea
4. Incheon St. Mary's Hospital, Family Medicine; Catholic University of Korea; Seoul Korea
5. Palliative Care Unit; Namwon Medical Center; Namwon Korea
6. Yeungnam University Medical Center; Daegu Korea
7. Chungnam National University Hospital; Daejeon Korea