J. S. C. de Amorim, V. T. M. Rocha, L. P. Lustosa, and L. S. M. Pereira, “Use of healthcare services and therapeutic measures associated with new episodes of acute low back pain- related disability among elderly people: a cross-sectional study on the Back Complaints in the Elders - Brazil cohort”, Sao Paulo Med J, vol. 139, no. 2, pp. 137–146, Apr. 2021.