DANIELSSON, Lars G.; HERNBORG, Jerker. Late Results of Perthes’ Disease. Acta Orthopaedica, [S. l.], v. 36, n. 1, p. 70–81, 1965. DOI: 10.3109/17453676508989373. Disponível em: https://actaorthop.org/actao/article/view/30255. Acesso em: 17 may. 2026.