ZETTERBERG, Carl; IRSTAM, Lars; ANDERSSON, Gunnar B. J. Subcapital Fractures of the Femur: Re-operations with Internal Fixation. Acta Orthopaedica, [S. l.], v. 50, n. 4, p. 451–455, 1979. DOI: 10.3109/17453677908989789. Disponível em: https://actaorthop.org/actao/article/view/29008. Acesso em: 24 may. 2026.