Pinheiro, J., Figueiredo, P., Branco, J., Ramos, S. and Ferreira, L. 2011. Nonspecific chronic low back pain and function: a clinical study in a physical medicine and rehabilitation consultation. Acta Médica Portuguesa. 24, (Dec. 2011), 287–92. DOI:https://doi.org/10.20344/amp.1489.