《医学文献查询》ppt课件

1、医学文献查询 循证医学(Evidence-Based Medicine, EBM)是近十余年来在国际上兴起的一门新兴的临床根底学科。 EBM是最好的临床研讨证据与临床实际(临床阅历、临床决策)以及患者价值观(关注，期望，需求)的结合。 EBM是运用最新、最有力的科研信息，指点临床医生采用最适宜的诊断方法、最准确的预后估计和最平安有效的治疗方法来治疗病人。 EBM强调医师应仔细地沉思熟虑地将目前所得到的最正确证据，用于对每一个病人进展安康效力时的决策。使我们提供的医疗效力建立在目前所能获得的证据根底上。 Classification Evidence-based guidelines Evide

2、nce-based guidelines (EBG) is the practice of evidence-based medicine at the organizational or institutional level. This includes the production of guidelines, policy, and regulations. This approach has also been called evidence based healthcare. Evidence-based individual decision making Evidence-ba

3、sed individual decision (EBID) making is evidence-based medicine as practiced by the individual health care provider. There is concern that current evidence-based medicine focuses excessively on EBID.Turning Research Into Practice专业搜索专业搜索 Medical Matrix (/index.asp) 由美国医学信息学会主办：是最重要的、首选

4、的医学搜索引擎，内容专业而且全面。有两种检索方式： 关键词搜索 分类目录搜索 分类目录包括8类，每类下面又有许多亚类： 专业(Specialties) 疾病种类(Diseases) 临床运用(Clinical Practice) 文献检索(Literature) 教育(Education) 安康和职业(Healthcare and Professionals) 医学计算和Internet技术(Medical Computing, Internet and Technology) 市场(Marketplace) Medscape (medscape/) 内容包括： 分类检索：按疾病、学科、内容性

5、质分类检索 免费Medline检索：3900多种医学杂志，9,500,000多万篇文章的摘要 医学词典：55,000条内容 最大的在线药物数据库：200,000多种药物的运用阐明。 文献全文：25,000多篇著名医学杂志文章全文。 Medical World Search (mwsearch/) 1997年建立的医学专业搜索引擎，采用美国国立医学图书馆的一致医学言语系统UMLS)，运用500,000多个医学术语检索，检索准确性很高。 Clini Web International (/cliniweb/)提供分类目录医学专业搜索引擎，分类目录有： 解剖学 微生物学 疾病 化学和

6、药理学 诊断和治疗技术及仪器 心思学 生物学 同时还提供免费Medline文献检索。其他医学搜索引擎HONcode (hon.ch/HON-code/index-t.html) Health Web (/) Health A to Z (mnisoftware/atoz/) Med Finder (netmedicine/medfinder.htm) M/Medweb/INTUTEintute.ac.uk/healthandlifesciences/Karolinska Institutet mic.ki.se/Disease

7、s/index.htmlInternational Network for the Availability of Scientific Publications，INASP (/health/links/contents.shtml)Medical Studentmedicalstudent/eMedicineemedicine/specialties.htmDoctors Guide(docguide/)MDLinxmdlinx/ki.se/?l=en中文文献网络数据导航k100006xjtu英文文献PubMed and MEDLINEPubMed - The Nati

8、onal Library of Medicine (NLM) journal literature search system. MEDLINE - The National Library of Medicines (NLMs) online database that contains over 16 million references to journal articles in the health sciences. PubMed Tutorial Goals and Objectives Understand PubMeds scope and content. Understa

9、nd how the MeSH vocabulary is used to describe and retrieve citations. Build a search using MeSH and PubMed search tools (Details, Limits, History, Search Builder, etc.) Manage your results using display, sort, the Clipboard, save, print, and order features and My NCBI filters. Save your search stra

10、tegies. Link to full-text articles and other resources. Use special queries and other PubMed/NCBI tools. /bsd/disted/pubmedtutorial/cover.htmlPubMed OverviewNLM has been indexing the biomedical literature since 1879, to help provide health professionals access to information necessary for

11、 research, health care, and education.What was once a printed index to articles, the Index Medicus, became a database now known as MEDLINE. MEDLINE contains journal citations and abstracts for biomedical literature from around the world. Since 1996, free access to MEDLINE has been available to the p

12、ublic online via PubMed. PubMed is a Web-based retrieval system developed by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine. It is part of NCBIs vast retrieval system, known as Entrez.PubMed is a database of bibliographic information drawn primarily from

13、 the life sciences literature.PubMed contains links to full-text articles at participating publishers Web sites as well as links to other third party sites such as libraries and sequencing centers.PubMed provides access and links to the integrated molecular biology and chemistry databases maintained

14、 by NCBI. The diagram shows the Entrez databases and the connections between them. MeSH is the acronym for Medical Subject Headings. MeSH is the authority list of the vocabulary terms used for subject analysis of biomedical literature at NLM. MeSH vocabulary is used for indexing journal articles for

15、 MEDLINE and is also used for cataloging books and audiovisuals. 医学主题词表(MeSH)Understanding the Vocabulary MEDLINE uses a controlled vocabulary, meaning that there is a specific set of terms used to describe each article. Familiarity with this vocabulary will make you a better PubMed searcher. The Me

16、dical Subject Headings (MeSH) MeSH is the acronym for Medical Subject Headings. MeSH is the authority list of the vocabulary terms used for subject analysis of biomedical literature at NLM. MeSH vocabulary is used for indexing journal articles for MEDLINE and is also used for cataloging books and au

17、diovisuals. The MeSH controlled vocabulary is a distinctive feature of MEDLINE. It imposes uniformity and consistency to the indexing of biomedical literature. MeSH terms are arranged in a hierarchical categorized manner called MeSH Tree Structures and are updated annually. The MeSH Tree Structure M

18、eSH vocabulary is organized by 16 main branches: Anatomy Organisms Diseases Chemical and Drugs Analytical, Diagnostic and Therapeutic Techniques and Equipment Psychiatry and Psychology Biological Sciences Natural Sciences Anthropology, Education, Sociology and Social Phenomena Technology, Industry, Agriculture Humanities Information Science Named Groups Health Care Publication Characteristics Geographic Locations nlm.