+-----------------------------------------------------------------------------
+Description: gdcmDicomDir and SQItem creation
+Date: 2004 Nov 16
+Attributed:
+Details: DicomDir creates some SQItem (by new). After that, it creates
+ the corresponding DicomDirPatient, etc. using the content of the SQItem
+ (the content is composed with some DocEntry's that can't be destroyed).
+ So, if the SQItem is deleted, then it's content is deleted to. But the
+ DicomDirPatient, etc. use the content of the SQItem. Then, the SQItem can't
+ be deleted, and when have memory leaks
+