1.Eldridge SM, Ashby D, Kerry S. Sample size for cluster randomized trials: effect of coefficient of variation of cluster size and analysis method. Int J Epidemiol. 2006;35(5):1292–300.
2.Wu S, Wong WK, Crespi CM. Maximin optimal designs for cluster randomized trials. Biometrics. 2017;73(3):916–26.
3.Simpson JM, Klar N, Donnor A. Accounting for cluster randomization: a review of primary prevention trials, 1990 through 1993. Am J Public Health. 1995;85(10):1378–83.
4.Donner A, Klar N. Pitfalls of and controversies in cluster randomization trials. Am J Public Health. 2004;94(3):416–22.
5.Campbell MK, Elbourne DR, Altman DG, group C. CONSORT statement: extension to cluster randomised trials. BMJ. 2004;328(7441):702–8.
6.Campbell MK, Piaggio G, Elbourne DR, Altman DG, Group C. Consort 2010 statement: extension to cluster randomised trials. BMJ. 2012;345:e5661.
7.Varnell SP, Murray DM, Janega JB, Blitstein JL. Design and analysis of group-randomized trials: a review of recent practices. Am J Public Health. 2004;94(3):393–9.
8.Puffer S, Torgerson D, Watson J. Evidence for risk of bias in cluster randomised trials: review of recent trials published in three general medical journals. BMJ. 2003;327(7418):785–9.
9.Bowater RJ, Abdelmalik SM, Lilford RJ. The methodological quality of cluster randomised controlled trials for managing tropical parasitic disease: a review of trials published from 1998 to 2007. Trans R Soc Trop Med Hyg. 2009;103(5):429–36.
10.Murray DM, Pals SL, Blitstein JL, Alfano CM, Lehman J. Design and analysis of group-randomized trials in cancer: a review of current practices. J Natl Cancer Inst. 2008;100(7):483–91.
11.Isaakidis P, Ioannidis JP. Evaluation of cluster randomized controlled trials in sub-Saharan Africa. Am J Epidemiol. 2003;158(9):921–6.
12.Korendijk EJH HJ, editor A SAMPLING OF ANALYSES AND SOFTWARE USE FOR CLUSTER RANDOMIZED TRIALS OVER THE LAST DECADE. Data and context in statistics education: Towards an evidence-based society Proceedings of the 8th International Conference on Teaching Statistics; 2010 Jul; Ljubljana, Slovenia.
13.Stiell IG, Clement CM, Grimshaw JM, Brison RJ, Rowe BH, Lee JS, et al. A prospective cluster-randomized trial to implement the Canadian CT Head Rule in emergency departments. CMAJ. 2010;182(14):1527–32.
14.Hanson LC, Zimmerman S, Song MK, Lin FC, Rosemond C, Carey TS, et al. Effect of the Goals of Care Intervention for Advanced Dementia: A Randomized Clinical Trial. JAMA Intern Med. 2017;177(1):24–31.
15.Donner A KN. Design and analysis of cluster randomization trials in health research. London: Arnold; 2000.
16.Campbell MK, Mollison J, Grimshaw JM. Cluster trials in implementation research: estimation of intracluster correlation coefficients and sample size. Stat Med. 2001;20(3):391–9.
17.Feng Z, Grizzle JE. Correlated binomial variates: properties of estimator of intraclass correlation and its effect on sample size calculation. Stat Med. 1992;11(12):1607–14.
18.Murray DM, Varnell SP, Blitstein JL. Design and analysis of group-randomized trials: a review of recent methodological developments. Am J Public Health. 2004;94(3):423–32.
19.Yotebieng M, Labbok M, Soeters HM, Chalachala JL, Lapika B, Vitta BS, et al. Ten Steps to Successful Breastfeeding programme to promote early initiation and exclusive breastfeeding in DR Congo: a cluster-randomised controlled trial. Lancet Glob Health. 2015;3(9):e546–55.
20.Duclos A, Touzet S, Restier L, Occelli P, Cour-Andlauer F, Denis A, et al. Implementation of a computerized system in pediatric wards to improve nutritional care: a cluster randomized trial. Eur J Clin Nutr. 2015;69(7):769–75.
21.Barker D, D’Este C, Campbell MJ, McElduff P. Minimum number of clusters and comparison of analysis methods for cross sectional stepped wedge cluster randomised trials with binary outcomes: A simulation study. Trials. 2017;18(1):119.
22.Chu R, Thabane L, Ma J, Holbrook A, Pullenayegum E, Devereaux PJ. Comparing methods to estimate treatment effects on a continuous outcome in multicentre randomized controlled trials: a simulation study. BMC Med Res Methodol. 2011;11(1):21.
23.Ma J, Raina P, Beyene J, Thabane L. Comparison of population-averaged and cluster-specific models for the analysis of cluster randomized trials with missing binary outcomes: a simulation study. BMC Med Res Methodol. 2013;13(1):9.
24. Lampert A, Hoffmann G F, Ries M. Ten years after the International Committee of Medical Journal Editors’ Clinical Trial Registration Initiative, one quarter of phase 3 pediatric epilepsy clinical trials still remain unpublished: a cross sectional analysis. PloS one. 2016;11(1): e0144973.
25. Chan A W, Hróbjartsson A, Haahr M T, Gøtzsche P C, Altman DG. Empirical evidence for selective reporting of outcomes in randomized trials: comparison of protocols to published articles. Jama. 2004;291(20): 2457–65.