PubMed
PubMed® comprises more than 33 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
获取500多万篇OA文献
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相关导航
思谋学术
自动检测和更新可以访问的学术镜像网址
LitSense
可按段落或句子搜索文献
Vizio Metrics
图像检索
Semantic Scholar
一款基于机器学习的学术搜索引擎
WOS
Wiley
Wiley在线数据库，Wiley是世界三大学术期刊出版商之一
BASE
More than 200 mio. scientfic documents from more than 8000 content providers. BASE is one of the world's most voluminous search engines for academic web resources.
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