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Browsing University of Hertfordshire by Author "Levay, Paul"
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A population search filter for hard-to-reach populations increased search efficiency for a systematic review
Cooper, Chris; Levay, Paul; Lorenc, Theo; Craig, Gillian M (2014-05-01)OBJECTIVES: This article discusses how hard-to-reach population groups were conceptualized into a search filter. The objectives of this article were to (1) discuss how the authors designed a multistranded population search ...