Open Access. The published version of this work has been reproduced here with the permission of the Senior Policy and Research Advisor, Physiotherapy New Zealand.
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This article may be downloaded for personal use only. Permission to reproduce this article must be sought from New Zealand Society of Physiotherapists. This work was published in New Zealand Journal of Physiotherapy, 34(1): 3-9. 2006. More information about this journal can be found at http://www.physiotherapy.org.nz/Category?Action=View&Category_id=241
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Copyright (2006) New Zealand Society of Physiotherapists.