Would you happen to have the original document ID for ohcal (OHSUMED)?

Dear Dr. Karypis

Currently, I'm doing document clustering utilizing MeSH ontology or UMLS ontology. For better comparison, I would like to use your dataset ohcal to evaluate our algorithm. However, I could not find original document ID for ohcal so that I can extract biomedical concepts from the document. Do you happen to the original documment ID? Thanks a lot!

Tom