机译：
Division of Cellular and Gene Therapies, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, United States;
Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, United States;
Department of Transfusion Medicine, Warren Grant Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States;
