Participants of the study will be allocated in the intervention group and the control group equally. Within three weeks from the time of randomization, the first meeting with a palliative care team will be held. In the time of baseline questionnaire, patients will be provided with self-study education materials and videos on the early palliative care and advance care planning. Once in every three weeks for six months, which is the duration for one treatment course, palliative care for advance care planning, symptom control, and other mental, social and spiritual problems will be provided. After the first meeting with the palliative care team, telephone coaching will be performed once a week for the first 12 weeks and then every two weeks until the end of the study.