1. National Cancer Institute (NCI); Bethesda Maryland
2. U.S. Food and Drug Administration (FDA); Silver Spring Maryland
3. HMDS Laboratory; St James's Institute of Oncology; Leeds United Kingdom
4. Clínica Universidad de Navarra; Centro de Investigación Médica Aplicada (CIMA); Pamplona Spain; on behalf of the Spanish Myeloma Group (PETHEMA/GEM)
5. UK NEQAS for Leucocyte Immunophenotyping; Royal Hallamshire Hospital; Shefield England
6. Centro Hospitalar de Lisboa Ocidental (CHLO), HSFX; Clinical Pathology Department; Lisbon Portugal
7. Roswell Park Cancer Institute; Department of Flow and Image Cytometry; Buffalo New York
8. Cedars-Sinai Comprehensive Cancer Center; Los Angeles California
9. Hematopathology Service; Memorial Sloan-Kettering Cancer Center; New York New York