Association and interaction of O<sub>3</sub> and NO<sub>2</sub> with emergency room visits for respiratory diseases in Beijing, China: a time-series study.

BMC Public Health · 2022 · PMC9721066 · PMID 36464692

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pmc-prop-is-real-version no pmc-prop-is-scanned-article no pmc-prop-preprint no pmc-prop-in-epmc yes pmc-license-ref CC BY issue-copyright-statement © The Author(s) 2022 Introduction In China, respiratory emergencies are one of the major pre-hospital emergency medical service (EMS) demand and show an increasing trend in recent years [ 1 ].

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