1. Gamma Dynacare Medical Laboratories; Brampton ON Canada
2. UK National External Quality Assessment Scheme for General Haematology; Watford UK
3. Department of Pathology; University of New Mexico; Albuquerque NM USA
4. Department of Clinical Laboratory Medicine; Juntendo University School of Medicine; Toyko Japan
5. Japanese Society for Laboratory Hematology; Standardization committee; Tokyo Japan
6. Institut für Laboratoriumsmedizin; Regionale Kliniken Holding RKH GmbH; Ludwigsburg Germany
7. Trillium Diagnostics; Bangor ME USA
8. Sullivan Nicolaides Pathology; Brisbane QLD Australia