1. Conservative management of mechanical neck pain: systematic overview and meta-analysis;Aker;British Medical Journal of Clinical Research,1996
2. Australian Physiotherapy Association (1988): Protocol for pre-manipulative testing of the cervical spine. Australian Journal of Physiotherapy 34: 97–100.
3. Australian Physiotherapy Association (1999): Code of Conduct.
4. A report on the occurrence of cerebral vascular accidents in chiropractic practice;Carey;Journal of the Canadian Chiropractic Association,1993
5. The immediate effect of manipulation versus mobilization on pain and range of motion in the cervical spine: a randomized controlled trial;Cassidy;Journal of Manipulative and Physiological Therapeutics,1992