Transfusion
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Red blood cells (RBCs) undergo changes during storage. Various studies have suggested a higher risk of adverse and often multifactorial clinical outcomes associated with older-stored RBCs. Our aim therefore was to examine if storage of transfused RBCs is also associated with the risk of RBC-specific alloantibody formation. ⋯ Our findings suggest that storage times of transfused RBCs between 1 and 4 weeks do not affect the risk of alloimmunization.