- Correspondence to Professor Jim Waterhouse, 3 Cherry Holt Avenue, Heaton Mersey, Stockport, Cheshire SK4 3PT, UK;
- Accepted 9 March 2010
- Published in print 1 June 2010.
- Published online 2 June 2010.
- Published first 19 May 2010.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.