WILLÉN, Jan. Postfracture spinal pain. Acta Orthopaedica, [S. l.], v. 64, n. sup251, p. 90–91, 1993. DOI: 10.3109/17453679309160131. Disponível em: https://actaorthop.org/actao/article/view/21897. Acesso em: 11 jul. 2026.