ASANOVA, A. Sociodemographic and clinical risk markers for operant behavior in patients with different types of chronic pain. Psychosomatic Medicine and General Practice, [S. l.], v. 10, n. 3, 2025. DOI: 10.26766/pmgp.v10i3.657. Disponível em: https://grobid.e-medjournal.com/index.php/psp/article/view/657. Acesso em: 8 jul. 2026.