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Table 1 Fifteen citation pearls in literature searching for qualitative research

From: Searching for qualitative research for inclusion in systematic reviews: a structured methodological review

Reference No. of citations Category
Barroso et al. (2003) [10] 152 Overviews
Booth (2006) [12] 92 Standards
Cooke et al. (2012) [13] 46 Question formulation
Evans (2002) [14] 116 Overviews
Finfgeld‐Connett and Johnson (2013) [15] 21 Overviews
Flemming and Briggs (2007) [16] 90 Filters
Grant (2004) [17] 35 Filters
Grayson and Gomersall (2003) [18] 59 Sources
McKibbon et al. (2006) [19] 45 Filters
Papaioannou et al. (2010) [20] 54 Supplementary strategies
Shaw et al. (2004) [21] 146 Filters
Subirana et al. (2005) [22] 31 Sources
Walters et al. (2006) [23] 31 Filters
Wilczynski et al. (2007) [24] 48 Filters
Wong et al. (2004) [25] 97 Filters
Total 1063