A multistate cluster of red blood cell transfusion reactions associated with use of a leucocyte reduction filter. - Alvarado-Ramy, F.; Kuehnert, M. J.; Alonso-Echanove, J.; Sledge, L.; Haley, N. R.; Epstein, J.; Vostal, J.; Pearson, M. (Transfusion Medicine, 2006)