1. Partners AIDS Research Center, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, 6th Floor, Room 6001, Charlestown, Massachusetts 02129-2000
2. Med. Klinik I, Universität Hamburg, Germany
3. Howard Hughes Medical Institute, Chevy Chase, Maryland
4. Transplantation Unit, Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts 02114
5. Benaroya Research Institute at Virginia Mason, Seattle, Washington
6. Lemuel Shattuck Hospital and Tufts University School of Medicine, Boston, Massachusetts
7. Department of Medical Oncology, Dana-Farber Cancer Institute, Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115
8. Gastrointestinal Unit, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114
9. Nuffield Department of Medicine, Peter Medawar Building for Pathogen Research, University of Oxford, South Parks Road, Oxford OX1 3SY, United Kingdom
10. Departmento de Virologia, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, Brazil