Affiliation: | (1) Department of Biochemistry, The University of Texas Southwestern Medical Center at Dallas, 79235 Dallas, TX;(2) Cell and Molecular Neurobiology, 405, Bristol-Myers-Squibb, 06492 Wallingford, CT;(3) Present address: Department of Biochemistry, University of Kentucky, 800 Rose St., 40536-0084 Lexington, KY;(4) Present address: Cytotherapeutics, 02906 Providence, RI |