Objective To investigate citreoviridin(CIT) level in market cereals of Heilongjiang province for new data to the studies on the Keshan disease.
目的检测黑龙江省县级市场销售粮食中黄绿青霉素（CIT）污染水平，为克山病病因研究提供新的参考数据。
There're 160 cit level and above leading enterprises, including 3 national leadin enterprises and 41 provincial leading enterprises.
目前，市级以上龙头企业达到160家，其中国家级3家，省级41家。
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