医学信息资源培训 PubMed www.pubmed.gov

Stomach Cancer OR Stomach Tumor OR Stomach Tumour OR Stomach Neoplasms

Journal Title、Publication Date Authors Title Words Affilication Search the same topic articles from Title\Abstract\MeSH Unique Identifiers Abstract

[PubMed - indexed for MEDLINE] [PubMed - as supplied by publisher] 较新或较老的文献 [PubMed - in process] [PubMed - OLDMEDLINE] [PubMed]

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WHY there are so many articles not I want? The garbage articles make me boring!!

自动语词转换功能 Automatic Term Mapping, ATM 在检索框中输入的不规范的词条将按照下列顺序进行匹配： MeSH (Medical Subject Headings) 转换表 期刊转换表 著者全名转换表 著者索引 短语表 如果没有发现匹配? PubMed将自动将词组拆开且重复匹配检索过程,直到发现一个相应匹配。 没有任何匹配的词组将会在“所有的领域”里被检索。单独的词之间用逻辑AND连接。

More Exactly? MeSH Stomach Cancer ………… Stomach Neoplasms Stomach Tumor Stomach Tumour Stomach Neoplasm(s) ………… MeSH Stomach Neoplasms

MeSH(Medical Subject Headings) Like as Tag Controlled vocabulary of biomedical terms that is used to describe the subject of each journal article in MEDLINE There are 26,000+descriptors in MeSH

Controlled Standardized

Stomach Cancer

是提示界面 而非检索界面

Subheadings Narrow the specific focus of a main topical heading to a particular aspect of the subject. There are 79 topical qualifiers http://www.nlm.nih.gov/mesh/topsubscope. html

Tips Operation—Surgery (Subheadings) Drug/adverse effects Therapy Method/adverse effects Disease/complication

Sample Therapy or Nursing on Stomach Cancer

主要主题词

about 10-25 MeSH Terms about 5 Major MeSH *

不扩展下位词

MeSH term is Best, So I only use MeSH! NO? WHY？

简单检索与主题词检索结果对比 主题词检索可提高查准率 不是所有词都有主题词 较新或较老的文献主题词均无法查出 如何提高简单检索的查全率

如何在检索结果中进一步精炼结果 filters

nature

小结 缩小检索结果范围 会用AND 善用filter 巧用majorMeSH、Subheading，不扩展下 位词

扩大检索结果范围 多用OR 巧用MeSH上位词

Tips Clinical Queries Single Citation Matcher

If I only know the title, how to search the article? Single Citation Matcher

Sample 2008;5;387-?

2008 5 387

Can I save my results & habits? My NCBI

Save searches

过 滤 器

meta

Recommend

F1000 (Faculty of 1000) Continuously updated selections and evaluations of the most important articles Attributed opinions and expert knowledge from global leaders in biology and medicine Site customization and email alerts based on user interests Recommendations and interpretations based on the article's merits, not the journal's

Recommended （6-7） Must Read （8-9） Exceptional 10+

How can I analysis the articles?

GoPubMed Based on PubMed Database Gene Ontology AND MeSH Analysis It`s FREE!! www.gopubmed.com

谢 谢 观 看 中国医学科学院医学信息研究所 黄利辉