1. Institute for Molecular Genetics, Baylor College of Medicine, Houston, TX 77030.
2. Institute for Molecular Genetics and Human Genome Center, Baylor College of Medicine, Houston, TX 77030.
3. Department of Neurology, Baylor College of Medicine, Houston, TX 77030.
4. Lawrence Livermore Laboratory, University of California, Livermore, CA 94550.
5. Department of Cell Biology and Histology, University of Nijmegen, Nijmegen, The Netherlands.
6. Department of Genetics, Children's Hospital, Eastern Ontario, Canada.
7. Department of Cardiology, Baylor College of Medicine, Houston, TX 77030.