Methods the analysis of food poisoning was conducted on the basis of the epidemiological investigation, clinical manifestations, laboratory testing results and diagnostic criteria.

方法根据流行病学调查、临床表现、实验室检验和食物中毒诊断标准进行分析。

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MethodsClinical investigation on CG patients was carried out adopting clinical epidemiological method.

方法运用临床流行病学方法对慢性胃炎患者进行临床流行病学调查。

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Methods Clinical analysis and epidemiological investigation.

方法临床病例分析和流行病学调查。

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