d Stata Journal volume 2, issue 4 t .. Other Stata Journals p snp9_1 Update to Kornbrot's rank difference test p st0022_1 Update to least likely observations p st0024 Using Aalen's linear hazards model to p - investigate time-varying effects in the p - proportional hazards regression model p st0025 Two-graph receiver operating characteristic p st0026 Estimation of averate treatment effects p - based on propensity scores p st0027 Programmable GLM: Two user-defined links p st0028 The clustergram: A graph for visualizing p - hierarchical and nonhierarchical cluster analyses p st0029 Demand system estimation p sxd3_1 Update to sample size for the kappa-statistic p - of interrater agreement