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Grey Literature Searching in Health   Tags: nursing, occupational_therapy, pharmacy, physiology, physiotherapy, psychology, research  

Last Updated: Nov 30, 2016 URL: http://canberra.libguides.com/greyliterature Print Guide RSS UpdatesEmail Alerts

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Guide Contents

Introduction

  • What is Grey Literature?
  • Why is Grey Literature Important?

Strategy

  • Grey Literature in a Research Strategy
  • Grey Literature Search Tips

Primary Sources

  • Theses and Dissertations
  • Conference Papers
  • Clinical Trials Registers
  • Clinical Practice Guidelines
  • Government and Semi-government sites
  • General Sources and Directories

Search Engines

  • Deep Web Search Engines
  • Search Engines

Appraisal

  • The AACODS Checklist
 

Introduction

This Subject Guide is aimed at researchers in Health, preparing literature or systematic reviews.  It is now considered that for a review to have the most comprehensive and strongest base of evidence it must include grey literature.

Grey literature is an often misunderstood concept by researchers.  This guide provides a greater understanding of how 'grey literature' is defined, methods for searching the grey literature, links to various primary sources, grey literature databases, critical appraisal tools and where to find further help.

 

What is Grey Literature and Why is it Important?

The term "grey literature" refers to information that is either unpublished or not published commercially.   A widely accepted definition of grey literature is "That which is produced on all levels of government, academics, business and industry in print and electronic formats, but which is not controlled by commercial publishers."Some examples of grey literature include:

Annual reports Fact sheets Patents
Blogs Government documents Personal communication
Book chapters Interviews Photographs
Bulletins Lectures Policy statements
Conference papers Legislation Posters
Course materials Newsletters Press releases
Dissertations Newspaper clippings Speeches
Emails Pamphlets Statistics

Grey literature contrasts with "black literature", which consists predominantly of peer-reviewed publications searchable in commercial databases.

A literature search that accesses only black' literature will likely miss key information.  In fact, the most prestigious evidence-based research organisations, including the Cochrane Collaboration require that, in addition to black literature, searches for grey and unpublished literature must be conducted by their reviewers in order to avoid publication bias.2

References

  1. Fourth International Conference on Grey Literature: New Frontiers in Grey Literature.  GreyNet, Grey Literature Network Service, Washington DC, USA, 4-5 October 1999.
  2. Higgins JPT, Green S (editors). Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 [updated March 2011]. The Cochrane Collaboration, 2011. Available from www.cochrane-handbook.org.

Subject Guide

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Terri Landford
Contact Info
Phone: 6201 2049
Email: researchrepository@canberra.edu.au
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License

Creative Commons License
Grey Literature Searching in Health by Murray Turner at University of Canberra is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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