To analyze the prevalence characteristics of pneumoconiosis from 1949 to 2004 in Shanghai to provide the reference for decision-making the further preventive measure.
分析上海市1949 ~ 2004年尘肺的发病状况和新发尘肺特点，为新形势下尘肺病的防治提供决策参考。
We give a quantitive analysis and comparison to these three models and provide a decision-making reference for the model selection.
描述性能测量常用的三种应用模型，对这些模型进行了定量的性能分析，给出了模型选用建议。
OBJECTIVE: to probe into the status quo and tendency of the utilization of Chinese herbal injections in our hospital for reference hospital decision-making and clinical rational drug use.
目的：分析和了解我院中药注射剂使用现状和趋势，为医院决策和临床合理使用该类药品提供参考。
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