Funding for this research was provided by:
Guangxi Food and Drug Safety Project (GFD-201520)
Text and Data Mining valid from 2018-04-18
Received: 12 April 2017
Accepted: 10 April 2018
First Online: 18 April 2018
Ethics approval and consent to participate
: All procedures performed in studies did not involve human participants and animals. The data used for our study were openly available in Public Health Emergency Report and Management Information System of the China Information System for Disease Control and Prevention and we received permission to use of this information in this paper from the office of Food Safety Commission.
: The authors declare that they have no competing interests.
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