Pires, Marta, Ana Sofia Cunha, Sara Serafino, Margarida Marcelino, Cláudia Armada, Susana Carvalho, and Amélia Saraiva. “Incidence of Persistent Postoperative Pain After Thoracotomy in a Cancer Hospital: A Prospective, Observational Study”. Journal of the Portuguese Society of Anesthesiology 32, no. 1 (April 17, 2023). Accessed January 15, 2025. https://revistas.rcaap.pt/anestesiologia/article/view/27316.