Data analysis was performed with STATA software package.

使用STATA统计软件包进行数据分析。

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SPSS13.0 data analysis were conducted on statistical analysis package.

数据分析均在SPSS13.0统计分析软件包上进行。

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SPSS13.0 data analysis were conducted on statistical analysis package.

数据分析均在SPSS13.0统计分析软件包上进行。

youdao