1. GlaxoSmithKline, Collegeville Road, Collegeville, Pennsylvania 19426, United States
2. GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K.
3. Centre for Immunobiology, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AD, U.K.