RYD, Leif; DAHLBERG, Leif. On bias. Acta Orthopaedica, [S. l.], v. 65, n. 5, p. 499–504, 1994. DOI: 10.3109/17453679409000899. Disponível em: https://actaorthop.org/actao/article/view/21571. Acesso em: 1 may. 2026.