Fatemeh Moqbeli, Fateme Mohebi Rezaei, Elnaz Seyyedbaglou, Parisa Fatahi, Javad Adeldoust, & Mohammad Amin Roustaei Hossein Abad. (2026). Effectiveness of Acceptance and Commitment Therapy on Pain Catastrophizing, Pain Self-Efficacy, and Psychological Flexibility in Individuals with Chronic Pain: A Quasi-Experimental Study. Health Nexus. https://doi.org/10.61838/