Smeets RJ, van Geel KD, Verbunt JA. Is the fear avoidance model associated with the reduced level of aerobic fitness in patients with chronic low back pain? Arch Phys Med Rehabil. 2009; 90(1):109-117
Jarvik JG, Hollingworth W, Heagerty PJ, et al. Three-year incidence of low back pain in an initially asymptomatic cohort: clinical and imaging risk factors. Spine. 2005;30:1541-1548.
Hakala P, Rimpela A, Salminen JJ, Virtanen SM, Rimpela M. Back, neck and shoulder pain in Finnish Adolescents: national cross sectional surveys. British Medical Journal 2002; 325: 743-747.
