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Environment
Short report
Effect of cold winters on the risk of new asthma: a case-crossover study in Finland
- Correspondence to Professor Jouni J K Jaakkola, Center for Environmental and Respiratory Health Research, University of Oulu, Oulu 90570, Finland; jouni.jaakkola{at}oulu.fi
Citation
Effect of cold winters on the risk of new asthma: a case-crossover study in Finland
Publication history
- Received October 7, 2022
- Accepted August 29, 2023
- First published October 24, 2023.
Online issue publication
January 22, 2024
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- Previous version (23 November 2023).
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© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.