UNANDER-SCHARIN, L. The Results of Lumbar Fusion in Disc Degeneration. Acta Orthopaedica, [S. l.], v. 18, n. 1-4, p. 125–131, 1949. DOI: 10.3109/17453674908988963. Disponível em: https://actaorthop.org/actao/article/view/31066. Acesso em: 25 may. 2026.