1. A. Wang and Y. Liang, Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Rockville, MD 20850, USA, and Graduate Program in Genetics, Michigan State University, East Lansing, MI 48824, USA.
2. R. A. Fridell, E. R. Wilcox, K. Noben-Trauth, R. J. Morell, T. B. Friedman, Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Rockville, MD 20850, USA.
3. F. J. Probst and S. A. Camper, Department of Human Genetics, University of Michigan, Ann Arbor, MI 48109, USA.
4. J. W. Touchman, NIH Intramural Sequencing Center, National Institutes of Health, Rockville, MD 20850, USA; National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.
5. C. C. Morton, Departments of Pathology, Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.