NEVELÖS, A. B.; COLTON, C. L.; BURCH, P. R. J.; WOODWARD, P. M. Perthes’ Disease: A Study of Radiological Features. Acta Orthopaedica, [S. l.], v. 48, n. 4, p. 411–421, 1977. DOI: 10.3109/17453677708992018. Disponível em: https://actaorthop.org/actao/article/view/29268. Acesso em: 15 may. 2026.