Searching the VeterinaryMedicine Literature

DVTH Clinical InstructorsAug 30-31, Sept 27 2012

Lorraine Toews MLISLibrarian, Veterinary Medicine ,UC Health Sciences Library

Libguides.ucalgary.ca/vetmed

Welcome!

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OverviewAuthenticationSearchable questions - PPICOSPubMed, CAB Abs, Google Scholar pros / consSearch strategies | mechanics

Broaden & focusSearch demonstrations

PubMed default & Clinical QueriesCAB Abs Multi-Field, Subject HeadingGoogle Scholar

Vet E-booksE-Journals listOther?

Off-Campus Authentication

Barcode: first 9 digits of barcode on back (leave off last digit)Password/PIN: UCID number leave off zeros at front of numberhttp://thoth.lib.ucalgary.ca/loginhelp.html

Literature Search Process

Define your search question• Identify key concepts• Identify synonyms for each concept

Identify limits - language, publication date, etc

Select relevant database(s) to search

Create search strategy for the database

Literature Search Process

Run your search• Subject headings or Textword terms• Limit search

Evaluate results, revise search• Broaden• Focus• Choose a different database

Print, email, save results

Ask Searchable Questions

Ask a SearchableQuestion

Among dairy cattle, is the complement fixation test vs the Elisa test more accurate in screening for Johne’s disease?

PPICOS QuestionsConcepts DefinitionP = Population | Species P = Problem • Disease, condition

• Presenting symptom

I = Intervention • Treatment• Adverse drug reaction• Diagnostic or screening test• Environmental exposure

C = Comparison Intervention Alternative intervention – gold standard treatment, diagnostic test

O = Clinical Outcome

S = Study design

What accomplish? Measure? Improve? Affect?

RCT? Systematic review?

Synonyms for ConceptsConcepts Search terms

P = PopulationP = Problem

Dairy cattle

I = Intervention ELISA OR enzyme linked

immunosorbent assay

C = Comparison Intervention

Cft OR complement fixation test

O = Clinical Outcome Johne’s disease OR paratuberculosis

Define Search Limits

Publication DateLanguageType of document – review, RCTAge groupGenderGeographic Location

Select Appropriate Databases for

Your Topic and Task

Veterinary MedicineInterdisciplinary

Veterinary Medicine Databases

CAB Abstracts – vet med, agriculturePubMed | MEDLINE – vet med, human medicine

Wildlife & Ecology Studies – wildlifeAgricola – agricultureGoogle Scholar – background, scoping searchScopus – interdisciplinary, cited reference

libguides.ucalgary.ca/vetmed

A Cautionary Note

PubMed & CAB Abstracts ….

• Not designed as clinical decision resources

• Not work like Google

• Quality varies - indexing, search functionality

• Effort to learn search skills > quality of results

CAB Abs vs PubMedCAB Abstracts PubMed

Content Comprehensive index of veterinary medicine journals*

Indexes many vet medicine conference proceedings

Indexes 110 vet med journals + human medicine journals

Not index conference proceedings

Quality of Indexing Less depth, less consistency than PubMed

Consistent, in-depth, granular indexing

Search interface More complex than PubMed Easier, more intuitive

Evidence-based medicine

No Clinical Queries Clinical Queries feature

Access Subscription required Free

Some Vet Med Journals in CAB not in PubMed

Bovine Bovine PractitionerCattle PracticeLivestock ScienceUK Vet: Livestock

Equine Australian Equine VeterinarianEquine Veterinary EducationJournal of Equine ScienceJournal of Equine Veterinary Science

Exotics Exotic DVMJournal of Exotic Pet Medicine

Swine Journal of Swine Health & ProductionPig Journal

Some Vet Med Journals in CAB not in PubMed

Poultry Journal of Poultry SciencePoultry International

Public Health Journal of Veterinary EpidemiologyJournal of Veterinary Public Health

Wildlife European Journal of Wildlife ResearchJournal of Wildlife HealthJournal of Wildlife Management

Other Journal of Veterinary Cardiology

Search Strategies

Search MechanicsBoolean Operators

AND, OR, NOT (see separate slide)Parentheses ( )

Enclose synonyms for a concept in parenthesesSearch boxes in CAB Abs Multi-Filed does tautomatically

Exact phrase searchVaries depending on databaseMany databases use quote marks “_” around a phrase

TruncationAsterisk at end of word stem retrieves plurals, word

variants - therap* retrieves therapy, therapist, therapeutic

Boolean Operators

ANDConnects conceptsFinds records with ALL search terms

Narrows search

Dementia AND treatment

ORConnects synonyms or similar terms within a concept

Finds records with EITHER or BOTH search terms

Broadens search

Dementia OR Alzheimers

NOTExcludes all records that contain the term after NOT

Narrows search

Use with care

Dementia NOT Alzheimers

Broaden or Narrow your Search

Concept Search TermsA AND Cft OR complement fixation test

“AND” in a concept NARROWS search

B

AND

elisa OR enzyme linked immunosorbent assay“OR” in synonyms within a concept BROADENS search

C AND Johne’s disease OR paratuberculosis

Strategies to Broaden Searches

Reframe your question to make it broaderUse broader search termsRemove the least important concept Add synonyms within a concept (Boolean OR)Use truncation in textword searches – therap*

retrieves therapy, therapist, therapeuticApply fewer, or no limitsUse the Explode feature

(only in CAB Abs, OVID MEDLINE)

Strategies to Focus Searches

Reframe your question to make it narrowerUse more specific search termsAdd another concept Use less/no synonyms within a conceptUse less/no truncation in textword searchesApply more limitsDo not use the Explode feature

(only in CAB Abs, OVID MEDLINE)

Subject Heading vs Keyword Searching

Subject Heading Textword |KeywordWhat is searched? Search subject headings

assigned by indexerSearch word(s) in title, abstract

Advantages Retrieves more relevant results

Retrieves new topics in literature + very specific topics

Enables use of Explode feature

Easier to learn and use

Enables retrieval abstract, multi-faceted concepts

Disadvantages New terms (eg. New drugs) may not be in subject headings yet

Often retrieves more irrelevant records (word match)

Searcher must include synonyms, plurals, spelling variations in strategy

Search ModeDepends on Task

PubMed DefaultNeed a few good articlesTopic covered by vet journals indexed in PubMedNot much time to search

PubMed Clinical QueriesWant articles from top levels of evidence hierarchy

CAB Abs Multi-Field• Topic not covered in PubMed journals• Need a few good articles • Your topic has precise concepts & terminology

CAB Abs AdvancedNeed systematic or comprehensive search

PubMed Default

PubMedClinical Queries

Textword Search(OVID Multi-Field)

CAB Abstracts

CAB Abstracts Record

Textword Search Multi-Field OVID

Subject Heading Search(OVID Advanced)

CAB Abstracts

CAB Abstracts Record

CAB Abstracts Record

Subject Heading search (OVID Advanced Search) searches this part of record

Purpose of Subject Headings

Account for synonyms, plural, alternate spelling

Increased Relevance

Purpose of Subject Headings

Use the Explode function

Purpose of Subject Headings

Retrieval of abstract, multi-faceted topics

Subject Heading SearchOVID Advanced

Getting Full-TextArticles

Print Email SaveSearch Results OVID

Full-text ArticlesSFX

SFX Citation linkerLinks database search results with full-text articlesIndicates if item is available in print in UC LibraryInterlibrary loan link if UC Library not have online or

print

Interlibrary LoanOrder articles UC Library does not haveJournal articles desktop delivery 2-4 business daysMust have email in library patron database

Full-Text Article:Via Database SFX Link

IInterlibrary Loan Linkon SFX in Database

Interlibrary Loan Login

Interlibrary Loan Journal Request

Reference ManagementMendeley

• Organize references online• Format bibliographies

http://www.mendeley.com/

Veterinary MedicineE-books

libguides.ucalgary.ca/vetmed

Find Books tabSelected Veterinary Medicine Ebooks

Need Help? Contact

Lorraine Toews MLISVeterinary Medicine LibrarianHealth Sciences Libraryltoews@ucalgary.ca | 403.220.3750libguides.ucalgary.ca/vetmed

Health Sciences Library Information Deskhslibr@ucalgary.ca | 403.220.6857(general, basic help)

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