1. Division of Genetics, Brigham and Women’s Hospital, Howard Hughes Medical Institute, Boston, MA 02115, USA.
2. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.
3. Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA.
4. Department of Viroscience, Postgraduate School of Molecular Medicine, Erasmus MC, University Medical Centre Rotterdam, 3015 CN, Rotterdam, Netherlands.
5. Children’s Hospital, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland.
6. Research Program for Clinical and Molecular Metabolism, University of Helsinki, 00014 Helsinki, Finland.
7. Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Denver, CO 80045, USA.
8. Genentech Inc., South San Francisco, CA 94080, USA.
9. Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
10. W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
11. Program in Virology, Harvard Medical School, Boston, MA 02115, USA.