1. Department of Computational Biology, GlaxoSmithKline, Collegeville, Pennsylvania.
2. Department of Health Outcomes, GSK Vaccines, Philadelphia, Pennsylvania.
3. Division of Research, Kaiser Permanente Medical Care Program, Northern California Region, Oakland, California.
4. Kaiser Permanente Vaccine Study Center, Oakland, California.
5. Department of Statistics, GlaxoSmithKline, Research Triangle Park, North Carolina.
6. Research and Development, GlaxoSmithKline, Collegeville, Pennsylvania.
7. Alternative Discovery and Development, GlaxoSmithKline, Research Triangle Park, North Carolina.