Burden of disease Trends in the burden of COPD in the Chinese population The overall burden of COPD in China became a decreasing trend during 1990–2019 according to the data in Table 2 .
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Burden of disease Trends in the burden of COPD in the Chinese population The overall burden of COPD in China became a decreasing trend during 1990–2019 according to the data in Table 2 .