WITHDRAWN: The weakest link?
The Publisher regrets that this article is an accidental duplication of an article that has already been published, doi: 10.1016/j.ijsu.2007.11.001. The duplicate article has therefore been withdrawn.
Thornton
Hazel
H
Honorary Visiting Fellow, University of Leicester, Department of Health Sciences, 31 Regent Street, Rowhedge, Colchester, Essex CO5 7EA, United Kingdom.