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MEDLINE

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  关于与“MEDLINE”标题相近或相同的条目页，请见“Medline (消歧义)”。
MEDLINE
制作者美国国家医学图书馆（美国）
历史1879年－今
语言当前期刊有40种语言，旧期刊有60种语言
可访性
费用免费
涵盖
学科医学、护理、药学、牙科、兽医学、保健、生物学、生物化学、分子进化、生物医学、医学史、卫生服务研究、艾滋病、毒理学、环境卫生（英语：environmental health）、分子生物学、补充医学（英语：complementary medicine）、行为科学、化学科学（英语：chemical science）、生物工程、卫生政策发展、环境科学、海洋生物学、植物科学（英语：plant science）、动物科学、生物物理学
记录深度NLM Medical subject headings, abstracts, indexing,
形式涵盖主要学术期刊；少量报纸、杂志；超过40%是在美国发表，约93%用英文发表。
时间涵盖1946-
记录数量超过2900万
更新频率每日
链接
网站https://www.nlm.nih.gov/bsd/medline.html

MEDLINE、MEDLARS Online，全名线上医学文献分析和检索系统（Medical Literature Analysis and Retrieval System Online），是生命科学和生物医学信息的书目数据库。涵盖医学、护理、药学、牙科、兽医学、卫生保健。还涵盖生物学和生物化学以及分子进化等领域的大部分文献。

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is a bibliographic database（英语：bibliographic database） of life sciences and biomedical information. It includes bibliographic information for articles from academic journal（英语：academic journal）s covering medicine（英语：medicine）, nursing（英语：nursing）, pharmacy, dentistry, veterinary medicine（英语：veterinary medicine）, and health care（英语：health care）. MEDLINE also covers much of the literature in biology（英语：biology） and biochemistry, as well as fields such as molecular evolution（英语：molecular evolution）.

Compiled by the United States National Library of Medicine (NLM), MEDLINE is freely available on the Internet and searchable via PubMed and NLM's National Center for Biotechnology Information's Entrez system.

历史

MEDLARS (Medical Literature Analysis and Retrieval System) is a computerised biomedical bibliographic（英语：bibliography） retrieval system. It was launched by the National Library of Medicine in 1964 and was the first large scale, computer based, retrospective search service available to the general public.[1]

开发

Since 1879, the National Library of Medicine had published 医学索引, a monthly guide to medical articles in thousands of journals. The huge volume of bibliographic citations was manually compiled. In 1957 the staff of the NLM started to plan the mechanization of the Index Medicus, prompted by a desire for a better way to manipulate all this information, not only for Index Medicus but also to produce subsidiary products. By 1960 a detailed specification was prepared and by the spring of 1961 a request for proposal（英语：request for proposal）s was sent out to 72 companies to develop the system. As a result, a contract was awarded to the 英国通用电气公司. A Minneapolis-Honeywell 800（英语：Honeywell 800） computer, which was to run MEDLARS, was delivered to the NLM in March 1963, and Frank Bradway Rogers（英语：Frank Bradway Rogers） (Director of the NLM 1949 to 1963) said at the time "..If all goes well, the January 1964 issue of Index Medicus will be ready to emerge from the system at the end of this year. It may be that this will mark the beginning of a new era in medical bibliography."

MEDLARS cost $3 million to develop and at the time of its completion in 1964, no other publicly available, fully operational electronic storage and retrieval system of its magnitude existed. The original computer configuration operated from 1964 until its replacement by MEDLARS II in January 1975.[2][3]

MEDLARS Online

In late 1971, an online version called MEDLINE ("MEDLARS Online") became available as a way to do online searching of MEDLARS from remote medical libraries.[4] This early system covered 239 journals and boasted that it could support as many as 25 simultaneous online users (remotely logged-in from distant medical libraries) at one time.[5] However, this system remained primarily in the hands of libraries, with researchers able to submit pre-programmed search tasks to librarians and obtain results on printouts, but rarely able to interact with the NLM computer output in real-time. This situation continued through the beginning of the 1990s and the rise of the World Wide Web.

In 1996, soon after most home computers began automatically bundling efficient web browsers, a free public version of MEDLINE was deployed. This system, called PubMed, was offered to the general online user in June, 1997, when MEDLINE searches via the Web were demonstrated.[5]

数据库

In May 2022, the database contained more than 34 million records[6] from 5,639[已过时] selected publications[7] covering biomedicine and health from 1781 to the present.Template:Clarify timeframe Originally, the database covered articles starting from 1965, but this has been enhanced, and records as far back as 1781 are now available within the main index. The database is freely accessible on the Internet via the PubMed interface and new citations are added Tuesday through Saturday. For citations added during 1995-2003: about 48% are for cited articles published in the U.S., about 88% are published in English, and about 76% have English abstracts written by authors of the articles. The most common topic in the database is Cancer with around 12% of all records between 1950-2016, which have risen from 6% in 1950 to 16% in 2016. [8]

检索

MEDLINE uses 医学主题词 (MeSH) for information retrieval. Engines designed to search MEDLINE (such as Entrez and PubMed) generally use a 布尔表达式 combining MeSH terms, words in abstract and title of the article, author names, date of publication, etc. Entrez and PubMed can also find articles similar to a given one based on a mathematical scoring system that takes into account the similarity of word content of the abstracts and titles of two articles.[9]

MEDLINE added a "publication type" term for “randomized controlled trial” in 1991 and a MESH subset “systematic review” in 2001.[10]

重要性

MEDLINE functions as an important resource for biomedical researchers and journal club（英语：journal club）s from all over the world. Along with the Cochrane Library（英语：Cochrane Library） and a number of other databases, MEDLINE facilitates evidence-based medicine（英语：evidence-based medicine）.[11][12][13] Most systematic review（英语：systematic review） articles published presently build on extensive searches of MEDLINE to identify articles that might be useful in the review.[11][12] MEDLINE influences researchers in their choice of journals in which to publish.[13]

期刊收录

More than 5,200 biomedical journals are indexed in MEDLINE.[11] New journals are not included automatically or immediately. Several criteria for selection are applied.[14] Selection is based on the recommendations of a panel, the Literature Selection Technical Review Committee, based on scientific scope and quality of a journal.[15] The Journals Database (one of the Entrez databases) contains information, such as its name abbreviation and publisher, about all journals included in Entrez, including PubMed.[16]

用法

PubMed usage has been on the rise since 2008. In 2011, PubMed/MEDLINE was searched 1.8 billion times, up from 1.6 billion searches in the previous year.[17]

A service such as MEDLINE strives to balance usability with power and comprehensiveness. In keeping with the fact that MEDLINE's primary user community is professionals (medical scientists（英语：healthcare science）, health care provider（英语：health care provider）s), searching MEDLINE effectively is a learned skill; untrained users are sometimes frustrated with the large numbers of articles returned by simple searches. Counterintuitively, a search that returns thousands of articles is not guaranteed to be comprehensive. Unlike using a typical Internet search engine, PubMed searching of MEDLINE requires a little investment of time. Using the MeSH database to define the subject of interest is one of the most useful ways to improve the quality of a search. Using MeSH terms in conjunction with limits (such as publication date or publication type), qualifiers (such as adverse effects or prevention and control), and text-word searching is another. Finding one article on the subject and clicking on the "Related Articles" link to get a collection of similarly classified articles can expand a search that otherwise yields few results.

For lay users（英语：wikt:layperson） who are trying to learn about health and medicine topics, the NIH offers MedlinePlus; thus, although such users are still free to search and read the medical literature themselves (via PubMed), they also have some help with curating（英语：content curation） it into something comprehensible and practically applicable for patients and family members.

另见

参考资料

  1. ^ Milestones in NLM History. [2009-09-06]. （原始内容存档于2018-07-23）. 
  2. ^ Rogers, Frank B. "The Development of MEDLARS （页面存档备份，存于互联网档案馆）" Bull Med Libr Assoc. 1964 January; 52(1): 150–151
  3. ^ Miles, Wyndham. The History of the NLM: Chapter 20 – Evolution of Computerized Bibliographies 互联网档案馆的存档，存档日期2012-10-17. (1983)
  4. ^ US Congress, Office of Technology Assessment (1982), MEDLARS and Health Information Policy （页面存档备份，存于互联网档案馆）. ISBN 1-4289-2424-8
  5. ^ 5.0 5.1 Internet Access to the National Library of Medicine (PDF). [6 April 2016]. （原始内容 (PDF)存档于2 November 2013）. 
  6. ^ Pubmed all[sb]. NLM Systems. 2022-05-08 [2016-05-08]. （原始内容存档于2022-06-30）. 
  7. ^ Number of Titles Currently Indexed for Index Medicus® and MEDLINE® on Pubmed®. NLM. 2013-07-09 [2013-11-05]. （原始内容存档于2018-09-22）. 
  8. ^ Reyes-Aldasoro C. The proportion of cancer-related entries in PubMed has increased considerably; is cancer truly "The Emperor of All Maladies"?. PLOS ONE. 2017, 12 (3): e0173671. Bibcode:2017PLoSO..1273671R. PMC 5345838 可免费查阅. PMID 28282418. doi:10.1371/journal.pone.0173671 可免费查阅. 
  9. ^ Lin, Jimmy; Wilbur, W John. PubMed related articles: a probabilistic topic-based model for content similarity. BMC Bioinformatics (BMC Bioinformatics (2007) 8:423). 2007-10-30, 8: 423. PMC 2212667 可免费查阅. PMID 17971238. doi:10.1186/1471-2105-8-423. 
  10. ^ Institute of Medicine (US) Committee on the Use of Complementary and Alternative Medicine by the American Public. State of Emerging Evidence on CAM. Complementary and Alternative Medicine in the United States.. National Academies Press (US). 2005 [2022-12-01]. （原始内容存档于2021-03-08）. 
  11. ^ 11.0 11.1 11.2 MEDLINE: Description of the Database. US National Library of Medicine. 10 April 2019 [1 February 2020]. （原始内容存档于2019-12-13）. 
  12. ^ 12.0 12.1 How Cochrane Central is created. Cochrane Library, John Wiley & Sons, Inc. 2020 [1 February 2020]. （原始内容存档于2021-12-07）. 
  13. ^ 13.0 13.1 Greenhalgh, T. How to read a paper: The Medline database. BMJ. 19 July 1997, 315 (7101): 180–183. ISSN 0959-8138. PMC 2127107 可免费查阅. PMID 9251552. doi:10.1136/bmj.315.7101.180. 
  14. ^ Journal Selection for MEDLINE. [2022-12-01]. （原始内容存档于2023-01-20）. 
  15. ^ MEDLINE Journal Selection Fact Sheet. LSTRC. [2009-04-13]. （原始内容存档于2021-04-08）. 
  16. ^ PubMed Tutorial – Building the Search - Search Tools - Journals Database. [2009-09-06]. （原始内容存档于2020-04-16）. [与来源不符]
  17. ^ Key MEDLINE® Indicators. NLM. 2012-02-06 [2012-03-20]. （原始内容存档于2020-10-16）. 

外部链接

检索自“https://zh.wikipedia.org/w/index.php?title=MEDLINE&oldid=80461755”