WILLNER, Stig. Effect of a rigid brace on back pain. Acta Orthopaedica, [S. l.], v. 56, n. 1, p. 40–42, 1985. DOI: 10.3109/17453678508992977. Disponível em: https://actaorthop.org/actao/article/view/23191. Acesso em: 4 may. 2026.