Methods: 37 cases of primary cardiac tumors that were proven by operation and pathology were analyzed with a retrospective method.
方法：回顾性分析经手术病理证实的37例原发性心脏肿瘤的彩超特征。
Methods A retrospective method was adopted in which 231 ADR cases collected in our hospital in the first half of the year 2009 were analyzed.
方法采用回顾性方法，对河南省中医院2009年收集的231例ADR报告进行统计分析。
We studied the responsibility and roles of hygiene epidemic prevention work for establishing and running tour city by retrospective method.
探讨卫生防疫工作在创建和治理旅游城市中的职责与作用。
We studied the responsibility and roles of hygiene epidemic prevention work for establishing and running tour city by retrospective method.
探讨卫生防疫工作在创建和治理旅游城市中的职责与作用。
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