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...

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Bibliographic Details
Main Authors: Lee, J T, Schwartz, J
Format: Online
Language:English
Published: 1999
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1566500/