Golovenko, M, and N Voloshchuk. “Glossary of Key Concepts and Terms Provided by the Іnternational Association for the Study of Pain”. Pain medicine 8, no. 1-2 (October 4, 2023): 4–8. Accessed March 21, 2026. https://painmedicine.org.ua/index.php/pnmdcn/article/view/349.