[1] Dartmouth Coll, Hitchcock Med Ctr, Dept Pathol, Transfus Med Serv, Lebanon, NH 03756 USA
[2] Univ N Carolina Hosp, Dept Pathol & Lab Med, Chapel Hill, NC USA
[3] Childrens Hosp Philadelphia, Philadelphia, PA 19104 USA
[4] Seattle Canc Care Alliance, Dept Pathol & Lab Med, Seattle, WA USA
[5] Univ Alabama Birmingham, Div Transfus Med, Birmingham, AL 35233 USA
[6] Univ Texas, SW Med Ctr, Dept Pathol, Transfus Med & Coagulat Lab, Dallas, TX 75216 USA
[7] Columbia Univ, Med Ctr, Dept Pathol, Div Lab Med, New York, NY 10027 USA
[8] Emory Univ, Grady Hosp, Dept Pathol & Lab Med, Atlanta, GA 30322 USA
[9] Univ Massachusetts, Med Ctr, Dept Pathol, Div Transfus Med, Worcester, MA 01605 USA
[10] Malachite Management, Vancouver, BC, Canada
[11] Mayo Clin, Div Transfus Med, Rochester, MN USA