Andresen, Trine, Marieke Niesters, Albert Dahan, Bart Morlion, Tony O´Brien, and Asbjørn M. Drewes. “Pharmacological Management of Chronic Pain: How to Deal With the Catch-22 Situation”. Journal of Current Medical Research and Opinion 4, no. 02 (February 3, 2021): 773−791. Accessed August 25, 2026. https://www.cmro.in/index.php/jcmro/article/view/382.