Kamper, S. J., Maher, C. G., Herbert, R. D., Hancock, M. J., Hush, J. M., & Smeets, R. J. (2010). How little pain and disability do patients with low back pain have to experience to feel that they have recovered? Springer-Verlag.

Kamper, Steven J., Christopher G. Maher, Robert D. Herbert, Mark J. Hancock, Julia M. Hush, e Robert J. Smeets. How Little Pain and Disability Do Patients With Low Back Pain Have to Experience to Feel That They Have Recovered? Springer-Verlag, 2010.

Kamper, Steven J., et al. How Little Pain and Disability Do Patients With Low Back Pain Have to Experience to Feel That They Have Recovered? Springer-Verlag, 2010.