1. IASP taxonomy "Part III: pain terms, a current list with definitions and notes on usage" (pp 209-214) classification of chronic pain, Second Edn, IASP task force on taxonomy, edited by H. Merskey and N. Bogduk, IASP Press, Seattle (Updated 2017)
2. Theories of pain: from specificity to gate control;Moayedi;J Neurophysiol,2013
3. From the gate to the neuromatrix;Melzack;Pain,1999
4. The clinical application of the biopsychosocial model;Engel;Am J Psychiatry,1980
5. Genetic factors explain the association between pain catastrophizing and chronic widespread pain;Ogata;J Pain,2017