1. Identifying patients at risk of becoming disabled because of low-back pain. The Vermont rehabilitation engineering center predictive model;Cats-Baril;Spine,1991
2. Back pain [letter];Frank;Rheumatology,2002
3. Scientific approach to the assessment and management of activity-related spinal disorders: a monograph for clinicians. Report of the Quebec task force on spinal disorders;Spitzer;Spine,1987
4. Identification des facteurs de risque de la lombalgie;Rev. Rhum.,1998
5. Objective clinical evaluation of physical impairment in chronic low back pain;Waddell;Spine,1992