1. Department of Molecular Therapeutics, The University of Texas, M. D. Anderson Cancer Center, 1515 Holcombe Blvd, Box 317, Houston, TX 77030, U.S.A.
2. Department of Molecular and Medical Genetics, Ontario Cancer Institute and University of Toronto, Toronto, Ontario, Canada M5G 2M9
3. Atairgin Technologies, Inc., 4 Jenner, Irvine, CA 92618, U.S.A.