Reanalysis of the effects of air pollution on daily mortality in Seoul, Korea: A case-crossover design.
We used the case-crossover design to identify any increase in mortality in Seoul, Korea, when there were higher levels of ambient air pollution on case-days than would be expected solely as a result of chance. This empirical study showed that either unidirectional retrospective (selecting only contr...
Main Authors: | , |
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Format: | Online |
Language: | English |
Published: |
1999
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Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1566500/ |