Non-Pharmacological Interventions for Patients with Chronic Pain: Their Perceived Effectiveness. Research and Analysis Journal, [S. l.], v. 8, n. 12, p. 27–39, 2025. DOI: 10.18535/raj.v8i12.579. Disponível em: https://rajournals.com/index.php/raj/article/view/579. Acesso em: 9 feb. 2026.