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+2004-05-04 Jean-Pierre Roux
+   * ADD Taking into account the 'Dicom Sequences' leads up to introduce 
+         new concepts (and new classes) :
+         a 'gdcmDocument' is composed of a set of Doc Entries, that are
+          - elementary gdcmDocEntries (former gdcmHeaderEntries)
+          - Sequence Doc Entries (gdcmSeqEntries)
+         a Sequence is composed of Items.
+         Each item is a set of Doc Entries (this is recursive)    
+         The non uniqueness of the 'Dicom tag' is due to this recursivity
+         (never taken into account)
+         Our unability to add a new 'entry' in the header 
+         at the proper location (neither in the H-Table (map or multimap), 
+        nor in the Chained List is also due to this recursivity.
+         Don't try, right now, to use/modify/compile these new sources : 
+        nothing is finished.
+         We just commit all the stuff, 'as is', in order not to loose it.
+                
 2004-05-04 Benoit Regrain <Benoit.Regrain@creatis.insa-lyon.fr>
      * vtk/vtkGdcmReader.cxx : bug fix in the setting of file name