KRISTIANSEN, Bjarne; CHRISTENSEN, Steen W. Proximal humeral fractures: Late results in relation to classification and treatment. Acta Orthopaedica, [S. l.], v. 58, n. 2, p. 124–127, 1987. DOI: 10.3109/17453678709146455. Disponível em: https://actaorthop.org/actao/article/view/22909. Acesso em: 21 may. 2026.