1. E. D. Carstea, J. A. Morris, K. G. Coleman, D. Zhang, C. Cummings, J. Nagle, M. Comly, A. Cooney, A. Brown, C. R. Kaneski, R. R. O'Neill, R. O. Brady, P. G. Pentchev, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NIH), Bethesda, MD 20892, USA.
2. S. K. Loftus, J. Gu, M. A. Rosenfeld, W. J. Pavan, M. H. Polymeropoulos, D. A. Tagle, National Human Genome Research Institute, NIH, Bethesda, MD 20892, USA.
3. D. B. Krizman, National Cancer Institute, NIH, Bethesda, MD 20892, USA.
4. S. L. Sturley, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA.
5. Y. A. Ioannou and M. E. Higgins, Mount Sinai School of Medicine, New York, NY 10029, USA.