LANGELAND, Norvald. Conservative Treatment with Active Exercises in Osteoarthritis of the Hip. Acta Orthopaedica, [S. l.], v. 43, n. 2, p. 118–125, 1972. DOI: 10.3109/17453677208991250. Disponível em: https://actaorthop.org/actao/article/view/29792. Acesso em: 28 may. 2026.