1. Department of Medicine; Dartmouth Hitchcock Medical Center; Lebanon New Hampshire
2. Department of Hematology/Oncology; Lenox Hill Hospital; New York New York
3. Geisel School of Medicine at Dartmouth; Hanover New Hampshire
4. American Red Cross Blood Services; Pomona California
5. Department of Pathology and Laboratory Medicine; University of California; Los Angeles California
6. Department of Pathology; Dartmouth Hitchcock Medical Center; Lebanon New Hampshire