Volume 384 (2004), pp. 367–375

An affiliation was not assigned to the author A. I. Alayash in the above paper. It should be Laboratory of Biochemistry and Vascular Biology, Division of Hematology, Center for Biologics Evaluation and Research (CBER), Food and Drug Administration (FDA), Bethesda, MD 20892, U.S.A. This error does not occur in the online journal.