@article{20938,
  author = {Smeets R and Lin C and Andersson EI},
  title = {Performance tests in people with chronic low back pain: responsiveness and minimal clinically important change},
  year = {2010},
  journal = {Spine},
  volume = {35},
  number = {26},
  pages = {E1559-63.},
  language = {eng},
}