Article info
PDFPostScript
Correspondence
Authors' response
- Correspondence to D C Cowan, University of Otago, PO Box 913, Dunedin 9001, New Zealand; douglas.cowan{at}stonebow.otago.ac.nz
Citation
Authors' response
Publication history
- Accepted July 27, 2010
- First published October 14, 2010.
Online issue publication
September 01, 2022
Article Versions
- Previous version (29 April 2016).
- You are viewing the most recent version of this article.
Request permissions
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.
Copyright information
© 2011, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.