1. Infectious Diseases Research Unit, GSK R&D, Collegeville, Pennsylvania 19426, United States
2. Global Health Medicines R&D, GSK R&D, Tres Cantos, Madrid 28760, Spain
3. Target Discovery Research Projects, GSK R&D, Stevenage SG1 2NY, United Kingdom
4. Immunology Research Unit, GSK R&D, Collegeville, Pennsylvania 19426, United States
5. Infectious Diseases Research Unit, GSK R&D, Stevenage SG1 2NY, United Kingdom