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. 2017 Mar 14;356:j667. doi: 10.1136/bmj.j667

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Fig 4 Maximum likelihood estimates (percentage) and 95% confidence intervals of the impact of 10 µg/m3 PM10 (lag=0) on total mortality for deaths due to cardiorespiratory diseases in 38 large cities in China. The dependent variable is the percentage change in number of daily deaths due to cardiorespiratory diseases. Each solid square represents an effect size. Horizontal lines indicate 95% confidence intervals