def create_dose_reference(dcm, description)
      dr_seq = DICOM::Sequence.new('300A,0010', :parent => dcm)
      dr_item = DICOM::Item.new(:parent => dr_seq)
      # Dose Reference Number:
      DICOM::Element.new('300A,0012', '1', :parent => dr_item)
      # Dose Reference Structure Type:
      DICOM::Element.new('300A,0014', 'SITE', :parent => dr_item)
      # Dose Reference Description:
      DICOM::Element.new('300A,0016', description, :parent => dr_item)
      # Dose Reference Type:
      DICOM::Element.new('300A,0020', 'TARGET', :parent => dr_item)
      dr_seq
    end
def create_dose_reference(dcm, description)
      dr_seq = DICOM::Sequence.new('300A,0010', :parent => dcm)
      dr_item = DICOM::Item.new(:parent => dr_seq)
      # Dose Reference Number:
      DICOM::Element.new('300A,0012', '1', :parent => dr_item)
      # Dose Reference Structure Type:
      DICOM::Element.new('300A,0014', 'SITE', :parent => dr_item)
      # Dose Reference Description:
      DICOM::Element.new('300A,0016', description, :parent => dr_item)
      # Dose Reference Type:
      DICOM::Element.new('300A,0020', 'TARGET', :parent => dr_item)
      dr_seq
    end
Creates a dose reference sequence in the given DICOM object.

 @param [DICOM::DObject] dcm the DICOM object in which to insert the sequence
 @param [String] description the value to use for Dose Reference Description
 @return [DICOM::Sequence] the constructed dose reference sequence