1. Anaesthetics and Critical Care Research and Clinical Innovation, Birmingham Research Park Birmingham UK
2. Transfusion Medicine, Department of Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
3. HDS Metrics (formerly of Bernard Becker Medical Library Washington University School of Medicine in St. Louis) Covington Kentucky USA
4. Bernard Becker Medical Library Washington University School of Medicine in St. Louis St. Louis Missouri USA
5. Department of Immunology and Transfusion Medicine Haukeland University Hospital Bergen Norway
6. Department of Surgery and Department of Critical Care Medicine University of Pittsburgh Pittsburgh Pennsylvania USA