diff --git a/Nitrogen/app.R b/Nitrogen/app.R
index efa2252..078dff6 100644
--- a/Nitrogen/app.R
+++ b/Nitrogen/app.R
@@ -1,6 +1,7 @@
 library(shiny)
 library(readxl)
 library(DT)
+library(tidyverse)
 
 file<-"V:/LBM/VIROTERAPIA I TERAPIA GENICA/Lola/Proyecto Idibell UM - Lola/Documentacion ensayo clinico PULSE laboratorio/PULSE MUESTRAS -80.xlsx"