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The Pub. Med ID and Entrez, Pub. Med and Pub. Med Central Edwin Sequeira The Pub. Med ID and Entrez, Pub. Med and Pub. Med Central Edwin Sequeira National Center for Biotechnology Information June 21, 2000 NATIONAL LIBRARY OF MEDICINE

National Center for Biotechnology Information Created by Public Law 100 -607 in 1988 as National Center for Biotechnology Information Created by Public Law 100 -607 in 1988 as part of National Library of Medicine at NIH to: • Create automated systems for knowledge about molecular biology, biochemistry, and genetics. • Perform research into advanced methods of analyzing and interpreting molecular biology data. • Enable biotechnology researchers and medical care personnel to use the systems and methods developed. NATIONAL LIBRARY OF MEDICINE

Pub. Med And Friends MEDLINE • Citations to Articles in 4, 000 Biomedical Journals Pub. Med And Friends MEDLINE • Citations to Articles in 4, 000 Biomedical Journals Selected by an Expert Panel • Subject Specialists Add NLM’s Medical Subject Headings (Me. SH) to Each Citation Pub. Med • MEDLINE Database Plus Supplementary Material From Some MEDLINE Journals • A Component of a Larger Retrieval System, Entrez • Integrates Access to Biomedical Literature and a Collection of Molecular Biology Databases NATIONAL LIBRARY OF MEDICINE

From There to Here Pub. Med Daily Averages: Over 120, 000 Users, 800, 000 From There to Here Pub. Med Daily Averages: Over 120, 000 Users, 800, 000 Searches Pub. Med has full MEDLINE With Links to Publishers Entrez Links MEDLINE Subset to Sequence Databases MEDLINE on the Web PC-based Front-End to MEDLINE Via TTY Early 70 s Mid 80 s Early 90 s NATIONAL LIBRARY OF MEDICINE Mid 90 s 1997 1999 2000

Pub. Med Growth: 1997 - 2000 NATIONAL LIBRARY OF MEDICINE Pub. Med Growth: 1997 - 2000 NATIONAL LIBRARY OF MEDICINE

More Friends Of Pub. Med Pub. Ref • Extends Pubmed Database to All Scientific More Friends Of Pub. Med Pub. Ref • Extends Pubmed Database to All Scientific Fields, Without NLM Indexing and Quality Control • Requested by U. S. National Academy of Sciences on Behalf of Some Scientific Journal Publishers Pub. Med Central • Free Access to Full Text of Life Science Research Articles and Supporting Data • Citations to Articles Are Included in Pubmed Database NATIONAL LIBRARY OF MEDICINE

Link To Related Articles NATIONAL LIBRARY OF MEDICINE Link To Related Articles NATIONAL LIBRARY OF MEDICINE

Link to Books NATIONAL LIBRARY OF MEDICINE Link to Books NATIONAL LIBRARY OF MEDICINE

Pub. Med Linking Entrez Related Articles PM ID GI PM ID Pub. Med PM Pub. Med Linking Entrez Related Articles PM ID GI PM ID Pub. Med PM ID Citation or Abstract Internal ID Related Book Sections Entrez NATIONAL LIBRARY OF MEDICINE Related Sequences, Structures, Genomes, etc.

Linking Within Entrez • Links to Related Articles, Sequences and Genome Data, and Books Linking Within Entrez • Links to Related Articles, Sequences and Genome Data, and Books – Computed Automatically • Quality of Linking Improves As Database Grows • List of Related Articles (or Sequences) Is Keyed to Unique Identifier (PM ID) of Originating Citation • Similar Linking From Sequence Databases • Link to Books: PM ID Abstract With Links Book Index NATIONAL LIBRARY OF MEDICINE

Direct Link To Publisher NATIONAL LIBRARY OF MEDICINE Direct Link To Publisher NATIONAL LIBRARY OF MEDICINE

Library-Specific Linking NATIONAL LIBRARY OF MEDICINE Library-Specific Linking NATIONAL LIBRARY OF MEDICINE

Other Link. Out Resources NATIONAL LIBRARY OF MEDICINE Other Link. Out Resources NATIONAL LIBRARY OF MEDICINE

Link. Out to Other Resources NATIONAL LIBRARY OF MEDICINE Link. Out to Other Resources NATIONAL LIBRARY OF MEDICINE

Link. Out Supports One to Many, Many to One: • Separate Links to Different Link. Out Supports One to Many, Many to One: • Separate Links to Different Versions of an Article, e. g. , HTML and PDF • Multiple Providers and Resources for a Single Citation • One External Resource Linked to One or More PM IDs (Static List or Pub. Med Query) Provider Defines Holdings and Rule for Creating Link to Specific Resource • Link Rule = URL Base + Unique ID for Resource • Resource UID = PM ID or other ID Data From Source Pub. Med Record Similar Links From Other Entrez Databases NATIONAL LIBRARY OF MEDICINE

More Link. Out A Library May Define Its Holdings (Online Journal Subscriptions) in Pub. More Link. Out A Library May Define Its Holdings (Online Journal Subscriptions) in Pub. Med ‘One Click’ Link Through From Any Outside Site to the Link. Out Provider For a Pub. Med/Entrez Item NATIONAL LIBRARY OF MEDICINE

Pub. Med Linking Entrez Related Articles PM ID GI PM ID Publisher / 3 Pub. Med Linking Entrez Related Articles PM ID GI PM ID Publisher / 3 rd Party Provider Related Sequences, Structures, Genomes, etc. PM ID Other Related Resources Pub. Med Full Text with References PM ID 3 rd Party Provider Citation or Abstract Internal ID Related Book Sections Entrez NATIONAL LIBRARY OF MEDICINE Provider-defined Link (URL) Full Text Article Publisher / 3 rd Party Provider

Pub. Med Central NATIONAL LIBRARY OF MEDICINE Pub. Med Central NATIONAL LIBRARY OF MEDICINE

Pub. Med Linking Entrez Related Articles PM ID GI PM ID Publisher / 3 Pub. Med Linking Entrez Related Articles PM ID GI PM ID Publisher / 3 rd Party Provider Related Sequences, Structures, Genomes, etc. 3 rd Party Provider PM ID Other Related Resources Pub. Med Full Text with References PM ID Citation or Abstract Internal ID Related Book Sections Entrez NATIONAL LIBRARY OF MEDICINE PM ID Provider-defined Link (URL) Full Text Article PM ID Full Text Article + Suppl. Material Publisher / 3 rd Party Provider Pub. Med Central

Try It Yourself Entrez / Pub. Med: www. ncbi. nlm. nih. gov/entrez/query. fcgi Entrez Try It Yourself Entrez / Pub. Med: www. ncbi. nlm. nih. gov/entrez/query. fcgi Entrez / Pub. Med Utilities: www. ncbi. nlm. nih. gov/entrez/utils_index. html Pub. Med Central: www. pubmedcentral. nih. gov NATIONAL LIBRARY OF MEDICINE