...
- Listing organisations have an ION (Issuing Organisation Number): a globally unique identifier, as issued by the ICCBBA, which maintains the authorative list of ION's. All organisations with an ION are listing donors and/or cord blood units in the global database Bone Marrow Donors Worldwide.
- All other organisations without an ION are referenced by their WO number, as used by the WMDA internally.
...