本文介绍了医学等级资料在进行秩和检验时，相同秩次如何需要校正以及正确的校正方法。
This paper introduced the reason of correction in same rank and the method of correction when dealing with medical ranked data by Rank-Sum test.
资料采用秩和检验和等级相关分析的统计学处理方法。
Data were analyzed by rank sum test and Spearman correlation test.
资料采用秩和检验和等级相关分析的统计学处理方法。
Data were analyzed by rank sum test and Spearman correlation test.
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