1. Division of Epidemiology, Bureau of Infectious Disease and Laboratory Sciences Massachusetts Department of Public Health Boston Massachusetts USA
2. Division of Laboratory and Transfusion Medicine, Department of Pathology Beth Israel Deaconess Medical Center Boston Massachusetts USA
3. Transfusion Medicine Service Baystate Health Springfield Massachusetts USA
4. Bureau of Health Care Safety and Quality Massachusetts Department of Public Health Boston Massachusetts USA
5. American Red Cross Blood Services Dedham Massachusetts USA
6. System Blood Banking and Transfusion/Apheresis Medicine Services, Department of Pathology Baystate Medical Center Springfield Massachusetts USA