Presentation on theme: "PubMed Searching: Automatic Term Mapping (ATM) PubMed for Trainers, Spring 2014 U.S. National Library of Medicine (NLM) and NLM Training Center."— Presentation transcript:
PubMed Searching: Automatic Term Mapping (ATM) PubMed for Trainers, Spring 2014 U.S. National Library of Medicine (NLM) and NLM Training Center
Objectives By the end of this session, you should be able to: Describe how PubMed processes a search using Automatic Term Mapping (ATM) Use Search Details to determine how PubMed processed your search Modify your PubMed search based on what you learn from Search details Revised 2014/01 2 PubMed for Trainers
Composing Your Search Be specific Use no punctuation (e.g., no quotation marks) Use no operators (e.g., AND) Use no tags Capitalization is unimportant Revised 2014/01 3 PubMed for Trainers
ATM (continued) PubMed looks for: Subjects Journals Authors In that order. Revised 2014/01 6 PubMed for Trainers
MeSH (Subject) Translation Table Contains: MeSH Headings Subheadings Publication Types Entry Term mappings (also known as synonyms) for MeSH terms Supplementary Concepts and synonyms to the Supplementary Concepts Mappings derived from the Unified Medical Language System (UMLS) Revised 2014/01 7 PubMed for Trainers
When a Match is Found for your Subject Revised 2014/01 8 PubMed for Trainers Processing now stops!
Automatic Explosion: What you Dont See in Search Details Revised 2014/01 9 PubMed for Trainers
Pop Quiz! Revised 2014/01 PubMed for Trainers 11
ATM (contd) If PubMed doesnt find a match in the MeSH subject table, it looks for: Subjects Journals Authors Revised 2014/01 12 PubMed for Trainers
Journals Translation Table Full journal title MEDLINE abbreviation International Standard Serial Number (ISSN) Revised 2014/01 13 PubMed for Trainers
When a Match is Found for your Journal Title 14 Revised 2014/01 PubMed for Trainers Processing now stops!
Pop Quiz! Revised 2014/01 PubMed for Trainers 15
ATM (contd) If PubMed doesnt find a match in the journals table, it looks for: Subjects Journals Authors Revised 2014/01 16 PubMed for Trainers
Author Translation Tables Author Index In the format: Lastname Initials: Jennings BH Full Author Translation Table Author names in natural and inverted order: Barbara H Jennings Jennings, Barbara H Investigator Index Full Investigator Translation Table Revised 2014/01 17 PubMed for Trainers
When a Match is Found for an Author Name Revised 2014/01 18 PubMed for Trainers Processing now stops!
Pop Quiz! Revised 2014/01 PubMed for Trainers 19
Combining Subjects, Journals & Authors: What does ATM Do? Revised 2014/01 21 PubMed for Trainers
No match in any of the translation tables? Revised 2014/01 22 PubMed for Trainers
Phrase Searching with Quotes Caution! Using quotes bypasses ATM & automatic explosion. Revised 2014/01 23 PubMed for Trainers
Revised 2014/01 PubMed for Trainers 24 Quoted Phrase Not Found
Exercise Search the following in PubMed: a. health planning b. health planning What is missed in the first search? Revised 2014/01 25 PubMed for Trainers
Searches that Bypass Automatic Term Mapping: 1. Using a search tag: Gene [author] Science [journal] 2. Forcing a phrase search with quotes: pressure point 3. Using the Single Citation Matcher 4. Using Advanced Search Revised 2014/01 26 PubMed for Trainers Use with caution!
Summary Revised 2014/01 PubMed for Trainers 27 For most PubMed searches just enter your terms and click Search. Always check Search details Automatic Term Mapping processes subjects, journals and authors, in that order.
Summary Revised 2014/01 PubMed for Trainers 28 With ATM, your MeSH terms will automatically explode to include narrower topics. The 3 ways to enter journal titles are: 1. Full journal title 2. MEDLINE journal title abbreviation 3. ISSN For the most comprehensive author search, use the format lastname initials (e.g., smith ja). If necessary, bypass ATM by using: Quotations or tags Single Citation Matcher Advanced Search (to be discussed later)
You should now be able to: Revised 2014/01 PubMed for Trainers 29 Describe how PubMed processes a search using Automatic Term Mapping Use Search Details to determine how PubMed processed your search Modify your PubMed Search depending on what you learn from Search Details