S. Get-Kong, S. Hanucharurnkul, R. McCorkle, C. Viwatwongkasem, T. Junda, and W. Ittichaikulthol, “Symptom Experience, Palliative Care and Spiritual Well-Being among Thais with Advanced Cancer”, PRIJNR, vol. 14, no. 3, pp. 219–234, Feb. 2013.