diff --git a/Header_TT.R b/Header_TT.R
index 3282de3..300e7dd 100755
--- a/Header_TT.R
+++ b/Header_TT.R
@@ -12,6 +12,9 @@ library(arsenal)
 library(scales)
 library(e1071)
 # https://www.datanovia.com/en/blog/how-to-add-p-values-onto-a-grouped-ggplot-using-the-ggpubr-r-package/#perform-all-pairwise-comparisons
+library(survival)
+library(CARS) # for calculating VIF (changed from cars)
+#library(BaylorEdPsych)
 
 
 ########################################################################