Article info
PostScript
Letter
Authors' response
- Correspondence to Dr Virginia M Weaver, Division of Occupational and Environmental Health, Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland 21205, USA; vweaver{at}jhsph.edu
Citation
Authors' response
Publication history
- Accepted February 2, 2012
- First published March 1, 2012.
Online issue publication
April 27, 2016
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© 2012, 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.