diff --git a/ML/0-data_prep.R b/ML/0-data_prep.R
index 7abcef9..faac273 100644
--- a/ML/0-data_prep.R
+++ b/ML/0-data_prep.R
@@ -9,6 +9,7 @@ box::use(
   ,RSQLite
   ,DBI[dbConnect,dbDisconnect]
   ,here[here]
+  ,dplyr
 )
 
 # globals -----------------------------------------------------------------
@@ -19,11 +20,30 @@ db <- dbConnect(
 )
 
 
+test_list <- c(
+  50862 #Albumin
+  ,50863	#Alkaline Phosphatase
+  ,50861	#Alanine Aminotransferase (ALT)
+  ,50878	#Asparate Aminotransferase (AST)
+  ,51006	#Urea Nitrogen
+  ,50893	#Calcium, Total
+  ,50882	#Bicarbonate
+  ,50902	#Chloride
+  ,50912	#Creatinine
+  ,50931	#Glucose
+  ,50971	#Potassium
+  ,50983	#Sodium
+  ,50885	#Bilirubin, Total
+  ,50976	#Protein, Total
+  ,50993	#Thyroid Stimulating Hormone
+  ,50995	#Thyroxine (T4), FreE
+)
 
 
 
+# load data ---------------------------------------------------------------
 
-
+ds <- dplyr$tbl(db, "labevents") %>% dplyr$filter(itemid %in% test_list) %>% dplyr$collect()
 
 
 # close database ----------------------------------------------------------