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  1. 1. MEDLINE Presented by, Vishnumaya, R. S. MLISc- S4 DLIS, University of Kerala
  2. 2. INTRODUCTION • International information systems are organized to serve the needs of developed as well as developing countries on co-operative basis. • These are established to store recorded information and retrieve it expeditiously. • They provide free exchange of information among scientists in various countries.
  3. 3. • The major International information systems & services are INIS, AGRIS, INSPEC, BIOSIS, MEDLARS, etc. • MEDLARS (Medical Literature Analysis & Retrieval System) is an online computer searching system & a bibliographic service started by NLM, Maryland (USA).
  4. 4. National Library of Medicine (NLM): An Overview • The NLM, on the campus of the National Institutes of Health in Bethesda, Maryland (USA), founded in 1836. • In 1956, NLM came under the Act of Congress of USA & was declared an apex library in the field of Medical Sciences.
  5. 5. NLM… • The world’s largest biomedical library, NLM maintains & makes available a vast print collection & produces electronic information sources on a wide range of topics. • It also supports & conducts research development, & training in biomedical informatics & health information technology.
  6. 6. Publications of NLM • Index Medicus (1879)- Monthly • Medical Subject Headings (MeSH)-1983 • Cumulated Index Medicus (1992) • Abridged Index Medicus (1993)
  7. 7. MEDLARS • The work on MEDLARS began in 1960 & the system has several major revisions. • Came into operation in 1964.
  8. 8. MEDLARS System • MEDLARS is a computerized storage & retrieval system to furnish bibliographic access to NLM’s large biomedical collection. • It became operational with the 1st computerproduced issue of ‘Index Medicus’, a comprehensive subject- author index, to the articles from the world’s biomedical journals.
  9. 9. Activities of MEDLARS • Preparing of citations for the publication of Index medicus. • Maintenance of several computer- readable databases including MEDLINE. • Operation of online network. • Provides SDILINE.
  10. 10. Scope/ Subject matter • Medicine • Toxicology • Dentistry • Cancer • Nursing • Veterinary medicine • Pharmacology • Allied health professions, etc.
  11. 11. Computer- based products & services • AVLINE (Audio-Visual Online) • CANCERLIT (Cancer Literature) • CATLINE (Catalogue Online) • CHEMLINE (Chemical Dictionary Online)
  12. 12. • TOXLINE (Toxicology information Online) • SDILINE (Selective Dissemination of Information Online) • SERLINE (Serials Online) • POPLINE (Population Information Online)
  13. 13. • RTECS (Registry of Toxic effects of Chemical Substances Online ) • HISTLINE (History of Medicine Online) • MEDLINE (MEDLARS Online)
  14. 14. MEDLINE • MEDLINE is a literature database of life sciences and biomedical information introduced in 1971. • It includes medicine, nursing, pharmacy, dentistry, veterinary medicine & health care. • It can be searchable via PubMed & NLM’s National Center for Biotechnology Information’s Entrez system.
  15. 15. Indexing • MEDLINE uses Medical Subject Headings (MeSH) for information retrieval. • Engines designed to search MEDLINE (such as PubMed & Entrez) generally use a Boolean expression combining MeSH terms, words in abstract and title of the article, author names, date of publication, etc.
  16. 16. Inclusion of journals • More than 6,000 of the world's leading biomedical journals are indexed in MEDLINE. • Selection is based on the recommendations of a panel, the Literature Selection Technical Review Committee (LSTRC), based on scientific policy and scientific quality.
  17. 17. • PubMed is a free database comprises more than 22 million citations for biomedical literature from MEDLINE, life science journals, & other online books. • Citations may include links to full- text content from PubMed Central & publisher websites. • Available via the NCBI Entrez retrieval system.
  18. 18. • MedlinePlus is a free web service produced & maintained by NLM. • Provides consumer health information for patients, families, & health care providers. • Brings together information from the US. NLM, the National Institutes of Health (NIH), other US.govt.agencies & health related organizations.
  19. 19. CONCLUSION • MEDLARS is a computerized biomedical bibliographic storage & retrieval system operated by the NLM. • It was 1st introduced in 1964 & evolved into an online system in 1971 called MEDLINE. • The publication, Index Medicus was ceased in December 2004.
  20. 20. REFERENCES • Khanna, J.K. (1996). Handbook of Library Information Systems & Services (Pp. 173-188). New Delhi: BEACON Books. • retrieved on 25.06.2013. • retrieved on 25.06.2013. • retrieved on 28.06.2013.