JSR Vol 55 Number 2 (2021) March 25, 2022March 25, 2022 Publisher Letter to the editor: “Pulling unmeasured confounding out by your bootstraps: Too good to be true?” By C. SEGALAS, C. LEYRAT, and E. WILLIAMSON On an inflated unit-Lindley distribution By S. R. BAPAT and R. BHARDWAJ D-optimal designs for dose finding in phase I clinical trials By H. M. SUJAN and M. I. ALAM The impact of variable omission on variable importance measures of cart, random forest, and boosting algorithms By W. H. FINCH Approximate likelihood inference in generalized linear models with censored covariates By M. TEIMOURI and S. K. SINHA Regression-type estimation of a finite population mean in two-phase sampling using auxiliary variable and attribute By P. A. PATEL and F. SHAH