grDevices, graphics, stats, utils, survival, rlang, dplyr,
forcats, magrittr, purrr, stringr, tibble, tidyr, gridExtra,
ggplot2 (>= 2.2.1), scales, survminer (> 0.4.0), cowplot,
tidytidbits
grDevices, graphics, stats, utils, survival, rlang (>= 0.2.0),
dplyr (>= 0.8.0), forcats, magrittr, purrr, stringr, tibble,
tidyr, gridExtra, ggplot2 (>= 2.2.1), scales, survminer (>
0.4.0), cowplot, tidytidbits