Epidemiology (Cambridge, Mass.) Mills, H L, Higgins, J P T, Morris, R W, Kessler, D S, Heron, J E, Wiles, N J, Davey Smith, G & Tilling, K M 2021, ' Detecting Heterogeneity of Intervention Effects Using Analysis and Meta-analysis of Differences in Variance Between Trial Arms ', Epidemiology, vol. 32, no. 6, pp. 846-854 . https://doi.org/10.1097/EDE.0000000000001401