1Bristol Institute for Transfusion Sciences, Bristol, UK
2Growing your Knowledge, Spit Junction, NSW, Australia
3American Red Cross Blood Services, Los Angeles-Orange Counties Region, Los Angeles, CA, USA
4Biotechnology Research Centre, Auckland University of Technology, Auckland, New Zealand
5Regional Blood Transfusion Center, Department of Clinical Immunology, University Hospital, Århus N, Denmark
6Department of Pathology, University Hospitals UH-2G332, Ann Arbor, Michigan, USA
7Reference Laboratory for Immunohematology and Blood Groups, National Blood Services Centre, Tel Hashomer, Israel
8New York Blood Center, New York, NY, USA
9Ortho-Clinical Diagnostics, Raritan, NJ, USA
10Drexel University College of Medicine, Philadelphia, PA, USA
11Gamma Biologicals Inc (subsidiary of Immunocor Inc), Houston, TX, USA
12Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam, the Netherlands
13Centre national de Référence pour les Groupes sanguines (CNTS), Paris, France
14International Blood Group Reference Laboratory, Bristol, UK
15Finnish Red Cross Blood Transfusion Service, Helsinki, Finland
16South African National Blood Service, East Coast Region, Pinetown, South Africa
17Osaka Red Cross Blood Center, Osaka, Japan
18Blood Bank, Hospital Sirio-Libanes, São Paulo, Brazil
19Rh Laboratory, University of Manitoba, Winnipeg, Manitoba, Canada