1. Gastrointestinal Unit, Infectious Disease Division, and Ragon Institute of MGH, MIT, and Harvard, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
2. 1. Medizinische Klinik, Universitätsklinikum Hamburg Eppendorf, D-20246 Hamburg, Germany
3. Heinrich Pette Institut-Leibniz Institute for Experimental Virology, D-20251 Hamburg, Germany
4. Laboratório de Hepatites Virais, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, 21040 Rio de Janeiro, RJ, Brazil
5. Lemuel Shattuck Hospital, Tufts University Medical School, Jamaica Plain, MA 02130
6. Benaroya Research Institute at Virginia Mason, Seattle, WA 98101