1. Adverse Mechanical Tension in the Central Nervous system;Breig,1978
2. Negative disc exploration: positive canal signs;Maitland;The Australian Journal of Physiotherapy,1979
3. Movement of pain sensitive structures in the vertebral canal and intervertebral foramina in a group of physiotherapy students;Maitland;South African Journal of Physiotherapy,1980
4. Maitland GD (1984), Canal Signs and their Significance in Treatment, Symposium: Low Back Pain, Prevention, Treatment, Research, in press.