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APA Citation
Deyo, R. A., Bryan, M., Comstock, B. A., Turner, J. A., Heagerty, P., Friedly, J., Avins, A. L., Nedeljkovic, S. S., Nerenz, D. R., & Jarvik, J. G. (2015). trajectories of Symptoms and Function in Older Adults With Low Back Disorders. Spine, 40(17), . http://access.bl.uk/ark:/81055/vdc_100052094040.0x00001a