@article{17645,
  author = {Verbunt J. and Smeets R. and van Geel K.},
  title = {Is the fear avoidance model associated with the reduced level of aerobic fitness in patients with chronic low back pain?},
  year = {2009},
  journal = {Archives of Physical Medicine and Rehabilitation},
  volume = {90},
  pages = {109-17. },
  language = {eng},
}