英语语法分析

We conducted a systematic review of the peer-reviewed literature published from 1 January 1987 to 1 September 2007 in all languages using PubMed and EMBASE.

我们开展的系统评价是利用PubMed和EMBASE检索1987年1月1日至2007年9月1日出版的各种语言的经同行评议的相关文献。

The paper mainly introduces the network database retrieval system of EMBASE, and explores the characteristics, retrieval way, retrieval methods and management of retrieval results.

该文主要介绍EMBASE网络数据库检索系统，并就该系统的特点、检索途径与方法及检索结果的处理等进行探讨。

METHODS: the search for relevant observational studies was undertaken in the MEDLINE, EMBASE, and Scopus electronic databases, as well as in the proceedings of major gastroenterology meetings.

方法：在MEDLINE、EMBASE及Scopus电子数据库及主要胃肠病学会议中搜索相关的观察性文章。