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[Immunohematologic follow-up and transfusion safety in hematopoietic stem cells allografts].

Since 1990, specific documentation is established between the immunohematology laboratory of the French EFS Lorraine-Champagne and the marrow transplantation unit of the CHU of Nancy, for patients undergoing hematopoietic stem cells transplantation. These documents and the standardization of the immunohematologic follow-up of those patients, have contributed to the improvement of the transfusion safety.