diff --git a/NAMESPACE b/NAMESPACE
index 30fbb46..eaeb109 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,8 +1,9 @@
-exportPattern("^[[:alpha:]]+")
-
-importFrom("methods", "new", "validObject")
-import("data.table")
+# exportPattern("^[[:alpha:]]+")
 
+exportClasses(EX1)
+exportClasses(LT1)
+exportClasses(RD1)
+exportClasses(RE1)
 
 ## Generics and functions defined in this package
 export("header1", "lt1", 
@@ -11,3 +12,15 @@ export("header1", "lt1",
        "protocol", "lt1<-",
        "selectYears", "ex1", "ex1<-", "rd1", "rd1<-",
        "selectRegion", "re1", "re1<-")
+
+export(readLT1x1)
+export(readEX1x1)
+export(readRegDeath)
+export(readRegExp)
+
+export(hello)
+
+importFrom("methods", "new", "validObject")
+importFrom("data.table", ":=")
+
+