1、 The relevant English literature was reviewed using MEDLINE and Google search engines.
使用联机医学文献检索系统和谷歌搜索引擎检阅有价值的英文文献.
来源:互联网
2、 Methods MEDLINE, EMBASE and ASCO searches were supplied by information from trial registers.
方法通过MEDLINE 、 EMBASE、ASCO论文集等数据库检索国内外已发表和未发表的相关文献.
来源:互联网
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