The standard electronic documents by the PDF document which encrypts save in the database, it has high security, easy to manage and maintenance.
标准电子文档以加密的PD F文件存储在数据库中，优点是安全性高，便于管理和维护。
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.
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.
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。
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