JONSSON , Elna; LJUNGKVIST , Ingvar; HAMBERG , Jern. Standardized Measurement of Lateral Spinal Flexion and Its Use in Evaluation of the Effect of Treatment of Chronic Low Back Pain. Upsala Journal of Medical Sciences, [S. l.], v. 95, n. 1, p. 75–86, 1990. DOI: 10.3109/03009739009178578. Disponível em: https://ujms.net/index.php/ujms/article/view/6802. Acesso em: 13 nov. 2026.