1. Accuracy of manual palpation skills: the ability of manipulative therapists to detect changes in force and displacement on a palpation simulator;Trott,1989
2. Reliability of pain and stiffness assessments in clinical manual lumbar spine examination;Maher;Phys Ther,1994
3. Comparison of manual diagnosis with a diagnosis established by a uni-level lumbar spinal block procedure. Integrating Approaches;Phillips,1993