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Correspondence
Vitamin D and COPD: seasonal variation is important
- Correspondence to Dr S N Ampikaipakan, Department of Respiratory Medicine, Norfolk and Norwich University Hospitals NHS Foundation Trust, Level 3 East Block, Colney Lane, Norwich NR4 7UY, UK; sundari.ampi{at}nnuh.nhs.uk
Citation
Vitamin D and COPD: seasonal variation is important
Publication history
- Accepted January 28, 2010
- First published June 26, 2010.
Online issue publication
September 01, 2022
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- Previous version (29 April 2016).
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© 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.