PubMed and its search options

1. PubMed and its search options Jan Emmerich, Sonja Jacobi, Kerstin Müller(5th Semester Library Management)

2. Table of Contents • What is PubMed? • Welcome to PubMed • Search options • Simple search • Simple search by search field tags • Advanced search • Search by limitations • Search by category fields • Search by index field • Display settings • Save options

3. What is PubMed? • free meta search engine • access to the bibliographic information source MEDLINE • daily update • increase of 500.000 records a year • contains approximately 19 million article citations from 5.000 journals published worldwide • service of the United States National Library of Medicine (NLM) and the National Institutes of Health (NIH) oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

4. What is PubMed? • articles are indexed under the application of the MeSH thesaurus • MeSH contains nearly 25.000 descriptors • is a part of the Entrez information retrieval system which is a global query cross-database search system • offers many different search options for non- and professional researchers oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

5. What is PubMed? Offers access to… • Oldmedline (articles before 1966) • PRE-Medline: in-process citations (currently about 100.000) • HealthStar (about 3 million records) • Journals from peripheral areas of medicine • Non-medical articles in Medline journals • References to journal full texts • Links to patent information on the Internet oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

6. Welcome to PubMed oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

7. Welcome to PubMed • “using PubMed” • various help texts • online training by movies • “PubMed tools” • direct access to: • the journal search • search of clinical studies • pool of various special searches • “More resources” • direct access to certain databases • “Sign in” • free account to expand the possibilities of using PubMed oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

8. Welcome to PubMed oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

9. Welcome to PubMed • “getting started” • general information how to use PubMed: • help manual • “NCBI Handbook” • various trainings and tutorials • “resources” • PM databases summarized under different headings • “How to” • more information about how to receive the full texts of the articles oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

10. Welcome to PubMed • “Popular” • list of the most used databases • quick access to the major databases • “Featured” • offers more utilities and databases • “NCBI information” • general information about NCBI • contact information • newsletter • “Help Desk” • contact PubMed directly oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

11. Simple search • keyword search formulations • logical interconnections • The Boolean operators AND (intersection); OR (union); NOT (exclusion) • bracket setting • search for phrases • wildcard search • various help boxes • related articles • more articles with search terms in the title • suggestions to use other, specified search terms • history of recent activities oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

12. Search options oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

13. Simple search by search field tags Frequently used search-field tags • [au] - author • [dp] - date published (YYYY/MM/DD) • [ip] - issue, part or supplement • [la] - language • [pg] - first page number of the article • [pmid] - PubMed ID • [pt] - publication type • [ta] - journal title • [ti] - title words • [vi] – volume oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

14. Advanced search • provides the same operators like the simple search • additionally • specification of the search query oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

15. Search by category fields • combination of different category fields • search of the index entries of every category field oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

16. Search by index field • automatic bracket setting • research is possible in “all fields” or in certain fields like “author”, “language”, “title”, … oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

17. Display settings Possibilities • summary • summary (text) • abstract • abstract (text) • MEDLINE • XML • PMID List oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

18. Save options Possibilities • file (copy will be saved on the computer) • clipboard (copy will be saved virtual, limit: 500 results) • collections (saves search queries) • email (copy of the article and an optional message will be send to an email address) • order (interlibrary lending /document delivery) oWhat is PubMed? o Welcome to PubMed o Search options o Display settings o Save options

19. Thank you!