"Systematic reviews seek to collate all evidence that fits pre-specified eligibility criteria in order to address a specific research question. They aim to minimize bias by using explicit, systematic methods." (from Cochrane Handbook for Systematic Reviews of Interventions)
Grey Literature generally refers to publications not produced by commercial publishers, including reports (pre-prints, preliminary progress and advanced reports, technical reports, market research reports, etc.), theses, conference proceedings, and other documents. They are often produced by government entities, research institutions, or NGOs/IGOs.
The Public Health Library's Public Health Subject Guides web guide consists of web pages by topic. Each page consists of annotated lists of organizations, agencies, databases, and publications. Topics include:
• Environmental Health
• Maternal and Child Health
• Statistical/Data Resources
and many more.
The Grey Literature Report is a bimonthly publication of The New York Academy of Medicine Library alerting readers to new grey literature publications in health services research and selected public health topics.
Google and other search engines can be useful for finding grey literature. Improve your search using:
• Quotes for phrase searching:
• Site: to specify a particular site or domain:
"social marketing" site:.org (for a domain search); "social marketing" site:cdcnpin.org (for a specific site search)
• Boolean search statements (eg, OR):
("social marketing" OR "audience segmentation")
Use the library catalogs to find books, reports, etc. on your topic. Books, while not often where original research is published, can often provide an overview of a topic and get you started with some key articles.