1. University Health Network, Toronto General Hospital; Ontario M5G2C4 Canada
2. Dahl-Chase Diagnostic Services in Bangor; Bangor Maine
3. Institute of Hematology and Blood Transfusion; Prague Czech Republic
4. Immunologic Flow Cytometry; ARUP Laboratories, Inc; Salt Lake City Utah
5. HMDL and Immunology Flow Cytometry Service; Leicester Royal Infirmary UHL NHS Trust; Leicester United Kingdom
6. Department of Flow and Image Cytometry; Roswell Park Cancer Institute; Buffalo New York
7. Department of Hematology/Flow Cytometry London Health Sciences Centre; London Ontario Canada