#include <string>
#include "gdcmCommon.h"
-typedef string VRKey;
-typedef string VRAtr;
-typedef map<VRKey, VRAtr> VRHT; // Value Representation Hash Table
+typedef std::string VRKey;
+typedef std::string VRAtr;
+typedef std::map<VRKey, VRAtr> VRHT; // Value Representation Hash Table
/// Container for dicom Value Representation Hash Table
/// \note This is a singleton