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Air pollution and chronic bronchitis: the evidence firms up
- Correspondence to Dr Frank Kelly, Environmental Research Group, Imperial College London Faculty of Medicine, London W12 0BZ, UK; frank.kelly{at}imperial.ac.uk
Citation
Air pollution and chronic bronchitis: the evidence firms up
Publication history
- Accepted March 1, 2021
- First published March 23, 2021.
Online issue publication
September 01, 2022
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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY. Published by BMJ. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license, which permits others to copy, redistribute, remix, transform and build upon this work for any purpose, provided the original work is properly cited, a link to the licence is given, and indication of whether changes were made. See: https://creativecommons.org/licenses/by/4.0/.