THORNGREN, Karl-Göran. Optimal treatment of hip fractures. Acta Orthopaedica, [S. l.], v. 62, n. sup241, p. 31–34, 1991. DOI: 10.3109/17453679109155102. Disponível em: https://actaorthop.org/actao/article/view/22292. Acesso em: 5 may. 2026.