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Harbord, Roger M; Whiting, Penny; Sterne, Jonathan A C; Egger, Matthias; Deeks, Jonathan J; Shang, Aijing; Bachmann, Lucas M (2008). An empirical comparison of methods for meta-analysis of diagnostic accuracy showed hierarchical models are necessary. Journal of clinical epidemiology, 61(11), pp. 1095-103. New York, N.Y.: Elsevier 10.1016/j.jclinepi.2007.09.013
Harbord, Roger M; Deeks, Jonathan J; Egger, Matthias; Whiting, Penny; Sterne, Jonathan A C (2007). A unification of models for meta-analysis of diagnostic accuracy studies. Biostatistics, 8(2), pp. 239-51. Oxford: Oxford University Press 10.1093/biostatistics/kxl004
Harbord, Roger M; Egger, Matthias; Sterne, Jonathan A C (2006). A modified test for small-study effects in meta-analyses of controlled trials with binary endpoints. Statistics in medicine, 25(20), 3443-57.. Hoboken, N.J.: Wiley-Blackwell 10.1002/sim.2380