1. Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, Section of Molecular Genetics and Microbiology, University of Texas, Austin, TX 78712, USA.
2. Institute for Genome Sciences and Policy (IGSP), Duke University, Durham, NC 27708, USA.
3. Department of Pediatrics, Division of Medical Genetics, Duke University, Durham, NC 27708, USA.
4. Genome Technology Branch, National Human Genome Research Institute, Bethesda, MD 20892, USA.
5. Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA.
6. European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1RQ, UK.
7. Department of Biology, Carolina Center for Genome Sciences, and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA.