[1] Brigham & Womens Hosp, Dept Pathol, Boston, MA 02115 USA
[2] Univ Pittsburgh, Dept Pathol, Pittsburgh, PA 15260 USA
[3] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA
[4] New Zealand Blood Serv, Epsom, New Zealand
[5] Osped Maggiore Policlin, Milan, Italy
[6] Univ Minnesota, Minneapolis, MN 55455 USA
[7] Dartmouth Hitchcock Med Ctr, Lebanon, NH 03766 USA
[8] Univ Med Greifswald, Inst Immunol & Transfus Med, Greifswald, Germany
[9] Univ Calif Los Angeles, David Geffen Sch Med, Dept Pathol & Lab Med, Div Transfus Med, Los Angeles, CA 90024 USA
[10] Univ Vermont, Med Ctr, Burlington, VT 05405 USA
[11] Mem Blood Ctr, St Paul, MN USA
[12] Oxford Univ Hosp NHS Fdn Trust, Oxford, England
[13] John Radcliffe Hosp, Oxford, England
[14] Brigham & Womens Hosp, Boston, MA 02115 USA