Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Grey literature for health

Guide to locating and evaluating grey literature in the health sciences.

The AACODS checklist, developed in 2010, is designed to enable evaluation and critical appraisal of this literature.

  • Authority: is the author credible?
  • Accuracy: is it supported by authoritative, documented references? Is it 'in line' with other work on the same topic?
  • Coverage: have limitations been imposed and are these stated clearly?
  • Objectivity: can bias be detected?
  • Date: can't find the date? Rule of the thumb is to avoid such material.
  • Significance: is it relevant? Would it enrich or have an impact on your research?