Chaichompoo, R., Namvongprom, A., Pakdevong, N.- oy, Preechakoon, B., & Ounlam, T. (2019). Relationship between Symptom Severity and Distress in Patients with Advanced Cancer. NU Journal of Nursing and Health Sciences, 13(4), 107–120. retrieved from https://he01.tci-thaijo.org/index.php/NurseNu/article/view/215437