Unrecognized function or variable 'init_ML_DICOM'

HI there.
I am trying to import dicom files into CERR and get the following error message:

Unrecognized function or variable ‘init_ML_DICOM’
Error in CERRImportDCM4CHE (line 32)
flag=init_ML_DICOM
Error in CERR (line 133)
CERRImportDCM4CHE
Error while evaluating UIControl Callback

I would be grateful for any suggestions on how to resolve this.

Lotte