AIBRECHT-OLSEN, Peter; OWEN-FALKENBERG, Therese; BURGAARD, Peder; ANDERSEN, Peter Bogeskov. Nine-year follow-up of the cementless Ring hip. Acta Orthopaedica, [S. l.], v. 60, n. 1, p. 77–80, 1989. DOI: 10.3109/17453678909150099. Disponível em: https://actaorthop.org/actao/article/view/22546. Acesso em: 8 may. 2026.