1. The Americian Academy of Pain Medicine. (2011). Relieving pain in America: A blueprint for transforming prevention, care, education, and research. Institute of Medicine. Committee on Advancing Pain Research, Care, and Education. Washington (DC): National Academies Press (US). ISBN 978–0–309-21484-1.
2. The American Academy of Pain Medicine. AAPM Facts and Figures on Pain. Online:
http://www.painmed.org/patientcenter/facts_on_pain.aspx#america
3. Woolf, C. J. (2011). Central sensitization: implications for the diagnosis and treatment of pain. Pain, 152, S2–S15.
https://doi.org/10.1016/j.pain.2010.09.030
.
4. Staud, R., Craggs, J. G., Robinson, M. E., Perlstein, W. M., & Price, D. D. (2007). Brain activity related to temporal summation of C- fiber evoked pain. Pain, 129, 130–142.
https://doi.org/10.1016/j.pain.2006.10.010
.
5. Nijs, J., Kosek, E., Van Oosterwijck, J., & Meeus, M. (2012). Dysfunctional endogenous analgesia during exercise in patients with chronic pain: to exercise or not to exercise? Pain Physician, 1, 205–214.