embase_scopus_有道手机词典

1.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。
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