THORNGREN, Karl-Göran. Swedish Orthopedic Society. Acta Orthopaedica, [S. l.], v. 60, n. sup231, p. 29–49, 1989. DOI: 10.3109/17453678909154182. Disponível em: https://actaorthop.org/actao/article/view/22680. Acesso em: 20 may. 2026.