CHOWDHARY, Upendra; GREENAVAR, Shivanand. Intradural lumbar disc protrusion: A case report. Acta Orthopaedica, [S. l.], v. 58, n. 4, p. 431–433, 1987. DOI: 10.3109/17453678709146375. Disponível em: https://actaorthop.org/actao/article/view/22993. Acesso em: 10 may. 2026.