Rejoinder: Improving precision and power in randomized trials for COVID‐19 treatments using covariate adjustment, for binary, ordinal, and time‐to‐event outcomes. Issue 4 (29th May 2021) - Benkeser, David; Díaz, Iván; Luedtke, Alex; Segal, Jodi; Scharfstein, Daniel; Rosenblum, Michael