Hopewell, S., & Clarke, M. (2004). Impact of grey literature on systematic reviews of randomized trials.
Chicago Style (17th ed.) CitationHopewell, S., and M. Clarke. Impact of Grey Literature on Systematic Reviews of Randomized Trials. 2004.
MLA (9th ed.) CitationHopewell, S., and M. Clarke. Impact of Grey Literature on Systematic Reviews of Randomized Trials. 2004.
Warning: These citations may not always be 100% accurate.