There are variety conflicts, for instance, severity waste of land resource, low ratio of land utility, drop behind of land information management and so on.
面临着土地资源浪费严重、土地利用率低、土地信息管理落后等种种矛盾。
In clinical practice we noticed that the successful implantation and the severity of GVHD were associated with t cell ratio of graft to receptor after pretreatment.
临床发现植入是否成功及GVHD的严重程度与预处理后供受体t细胞比例有关。
Objective: Analyze the degree of impact of mean in-hospital day by ratio of severity.
目的：分析疑难危重率对平均住院日的影响程度。
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