1. Swiss Transfusion SRC Bern Switzerland
2. Cerus Corporation Concord CA USA
3. National Blood Transfusion Center of Côte D'Ivoire Abidjan Côte D'Ivoire
4. Hematology and Blood Transfusion Service University Hospital Center Yaoundé Cameroon
5. Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon