TY - JOUR A1 - Knol, M.J. A1 - Pestman, W.R. A1 - Grobbee, D.E. T1 - The (mis)use of overlap of confidence intervals to assess effect modification Y1 - 2011 DO - 10.1007/s10654-011-9563-8 VL - 26 IS - 4 ER -