MEDLINE®/PubMed® PubMed for Trainers, Fall 2015 U.S. National Library of Medicine (NLM) and NLM Training Center An introduction

Objectives By the end of this presentation, you will be able to:  Distinguish between a MEDLINE and non-MEDLINE record in PubMed.  Define:  MeSH headings  MeSH Major Topics  MeSH Subheadings  Conduct a basic PubMed search  Manipulate the results’ display  Move from your PubMed results to other resources  Identify where to customize your use of PubMed (My NCBI) Revised Fall 2015

What is MEDLINE? Revised Fall 2015

1964 – MEDLINE - a database of citations to biomedical journal articles. Revised 2014/09

Pop Quiz Revised Fall 2015

Highlights of MEDLINE  MEDLINE is a database of citations to published biomedical journal articles.  MEDLINE has over 22 million citations going back to the mid 1940s.  Over 5,600 journals are currently indexed for MEDLINE.  Journals must be approved by a review committee.  Most of the citations are for English-language articles and include abstracts. Revised Fall 2015

Who decides what journals are in MEDLINE? The Literature Selection Technical Review Committee  Made up of medical experts and librarians.  Meets 3 times per year.  Considers approximately 180 titles each meeting.  Selects roughly 20-25% of reviewed titles. Revised Fall 2015

What criteria are used to select MEDLINE journals? Critical elements for inclusion:  Scope and coverage  Quality of content  Quality of editorial work  Production quality  Audience  Types of content See Fact Sheet for selection criteria. Revised Fall 2015

Pop Quiz Revised Fall 2015

How has the scope of MEDLINE changed over time? See Journals Recently Accepted for Inclusion in MEDLINE: Revised Fall 2015

MEDLINE Basic Bibliographic Citation Journal Source Information Title of the journal article Names of the Authors Affiliation(s) Abstract published with the article Language in which the article was published Publication Type (description of the type of article, e.g., Review, Letter, etc.) Controlled Vocabulary search terms (Medical Subject Headings) Revised Fall 2015

What are Medical Subject Headings? Revised Fall 2015

MeSH (Medical Subject Headings) terms are added by NLM indexers to reflect the content of the article. Indexers assign the most specific terms possible. Revised Fall 2015

* = a major concept. Subheadings are used with MeSH headings to be more specific. Anti-HIV Agents/therapeutic use Breast Feeding/contraindications Revised Fall 2015

What is PubMed? Revised Fall 2015

PubMed Revised Fall 2015

MEDLINE Licensees Revised Fall 2015

PubMed Daily Statistics 3.3 million Web searches (2 million users) 5.6 million record views 5.2 million E-utilities (API) searches 430,000 Mobile searches (240,000 users) Revised Fall 2015

What’s in PubMed? includes: records for online books & chapters out of scope articles Revised Fall 2015

Pop Quiz Revised Fall 2015

PubMed Record Status Tags Revised Fall 2015

How to Search PubMed aids drugs breast feeding Revised Fall 2015

Search Results Revised Fall 2015

Automatic Term Mapping (ATM) ATM Checks these tables:  Subjects (Medical Subject Headings)  Journal Titles  Authors PubMed uses Automatic Term Mapping which recognizes thousands of concepts and maps to an appropriate term. Revised Fall 2015

Search details

The Search Details feature lets you see how your search was mapped. Revised Fall 2015

See the Difference: “aids drugs” + “breast feeding”= 3 aids drugs breast feeding= 501 (processed using ATM) Revised Fall 2015

Pop Quiz Revised Fall 2015

Citation Sensor fauci cell 2007 Revised Fall 2015

Citation Sensor Revised Fall 2015

Title Matcher Revised Fall 2015

How to search Revised Fall 2015

Abstract display

Revised Fall 2015

Where’s the Full Text? PublishersVendors (via libraries) Revised Fall 2015

Where’s the Full Text? PubMed Central: 2.7 million articlesPublishersOther archives and access projects Revised Fall 2015

Facilitator of Full-Text Availability: The NIH Public Access Policy Published results of research supported by NIH must be available to the public (as of April 7, 2008) Final, peer-reviewed (journal article) manuscripts accepted for publication Revised Fall 2015

Links Between Databases

Revised Fall 2015

Customizing PubMed Using My NCBI My NCBI allows you to:  Save records (Collections, My Bibliography)  Save searches (Saved Searches)  Customize your results (Filters, My NCBI Preferences) Revised Fall 2015

My NCBI homepage Revised Fall 2015

Register for an account  Homework: Register for a My NCBI account if you don’t already have one.  Throughout the class, the instructors will point out useful features of My NCBI to use when searching PubMed Revised Fall 2015

…insert visual here… PubMed Mobile Mobile-friendly version of PubMed VIDEO: PubMed Mobile Demonstration Revised Fall 2015

Online Help and Training Revised Fall 2015

Summary  The MEDLINE database of biomedical journal citations is the heart of PubMed.  MEDLINE includes only good quality journals deemed important and relevant by a committee of experts.  MEDLINE is available for free using PubMed, but it is also available from other database searching systems.  MEDLINE is enhanced with Medical Subject Headings (MeSH), which improve access to the literature and can be used for searching. Revised Fall 2015

Summary (continued)  Search PubMed by entering the main concepts of your search without punctuation. Your terms will automatically map to MeSH.  Enter components of references (author, title, journal) to find a known article or set of articles.  The full text article may be linked from the PubMed record using an icon in the upper right of the abstract display.  Explore related citations and related information from the right column of your search results and the abstract display.  Customize your PubMed search experience using My NCBI Revised Fall 2015

Conclusions You will now be able to:  Distinguish between a MEDLINE and non- MEDLINE record in PubMed.  Define:  MeSH Headings  MeSH Major Topics  MeSH Subheadings  Conduct a basic PubMed search  Manipulate the results display  Move from your PubMed results to other resources  Identify where to customize your use of PubMed (My NCBI) Revised Fall 2015