Columbia subject headings:
Coal mine accidents--China.
Coal miners--China--Mortality.
Coal mines and mining--China--Safety measures.
Mine safety--International cooperation.
Harvard subject headings:
Coal mine accidents--China.
Coal miners--China--Mortality.
Coal miners--Mortality--China.
Coal mines and mining--China--Safety measures.
Mine safety--International cooperation.
Princeton subject headings:
Coal mine accidents--China.
Coal miners--China--Mortality.
Coal mines and mining--China--Safety measures.
Mine safety--International cooperation.