1. Neuropathic pain redefinition and a grading system for clinical and research purposes;Treede;Neurology,2008
2. Classification of chronic pain;International Association for the Study of Pain;Pain,1986
3. Yaşam Kalitesinin Ölçülmesi, WHOQOL-100 ve WHOQOL-BFEF;Özkan;Psikiyatri, Psikoloji, Psikoformokoloji dergisi,1999
4. What quality of life? The WHOQOL Group. World Health Organization Quality of Life Assessment;World Health Forum,1996