1. Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA.
2. Department of Pediatrics, University of Washington, Seattle, WA 98195, USA.
3. Department of Genetics, Stanford University, Stanford, CA 94305, USA.
4. Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
5. The Center for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114, USA.
6. Human Genetics Center, University of Texas Health Sciences Center at Houston, Houston, TX 77030, USA.
7. Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA.
8. Division of Genetics, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA.
9. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
10. Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.