1. American Spinal Injury Association 2002 International standards for the classification of spinal cord injury. Atlanta, GA.
2. Why aren’t they working?;Britell;Journal of the American Paraplegia Society,1991
3. Campbell S 2001 National return to work monitor: 2000/2001 Report. Campbell Research and Consulting, Melbourne.
4. Campbell S 2002 National return to work monitor: 2001/2002 Report. Campbell Research and Consulting, Melbourne.
5. Campbell S 2003 National return to work monitor: 2002/2003 Report. Campbell Research and Consulting, Melbourne.