但是，由于结构化录入缺乏灵活性，且难于表达复杂病历中的有效信息，因此制约了电子病历系统的广泛应用。
But structured data entry restricts wide use of EPR system as a result of its inflexibility and hardness to express effective information of complex medical record.
CDA标准是HL7组织发布的医疗行业临床文档架构，提供了临床文件的交换模型，为电子病历系统的实现提供了标准。
CDA standard is a EMR construction in medical field issued by organization of HL7, it is standard for implementation of Electronic medical Record System and provide exchange model for clinic document.
本文介绍了基于动态解析数据结构的电子病历系统设计方法。
This paper introduces the designing method of the electronic medical record system based on the Dynamic analysis data structures.
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