A population search filter for hard-to-reach populations increased search efficiency for a systematic review

Journal of Clinical Epidemiology (2014) - Comments
doi: 10.1016/j.jclinepi.2013.12.006 issn: 0895-4356 pubmed: 24698297 issn: 1878-5921

Chris Cooper, Paul Levay, Theo Lorenc, Gillian M. Craig