ABSTRACTS

• Patients using chiropractors in North America: who are they, and why are they in chiropractic care?

• Ruptured cervical disc after spinal manipulation therapy: report of two cases.

• Backpacks on! Schoolchildren's perceptions of load, associations with back pain and factors determining the load.

• Unpredictability of cerebrovascular ischemia associated with cervical spine manipulation therapy. A review of sixty-four cases after cervical spine manipulation.

• Pelvis-thorax coordination in the transverse plane during walking in persons with nonspecific low back pain.

• Clinical practice guideline for the physiotherapy of patients with whiplash-associated disorders.

• Sacral stress fractures: an unusual cause of low back pain in an athlete.

• Radiographic changes in the lumbar intervertebral discs and lumbar vertebrae with age.