1. Ragon Institute of MGH, MIT, and Harvard, Massachusetts General Hospital and Harvard Medical School, Cambridge, Massachusetts, USA
2. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, California, USA
3. Cancer and Inflammation Program, HLA Immunogenetics Section, Leidos Biomedical Research, Inc., National Cancer Institute, Frederick, Maryland, USA
4. Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
5. Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
6. Howard Hughes Medical Institute, Chevy Chase, Maryland, USA