“…Under the diagnosis of advanced cancer, caregivers experienced the emotional cycle of hope and despair toward patients’ deterioration and death 17,18,22,23,28,31–34,36 . As the patients’ physical symptoms and distress deteriorated, caregivers described mood swings similar to a “rollercoaster.” 17,18,22,27–29,34 They were shocked, felt guilty for the diagnosis of advanced cancer, 17,18,24,27,28,30,32,34,36 had fear and worry about the patients’ well-being, 18–20,31 felt helpless about the patient’s suffering, 17,18,21,27,29–31,33,34,36 and had grief about the unavoidable death 18,27,28,30,33,34,36 …”