1. Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
2. Department of Biometrics Research, Merck & Co., Inc., West Point, Pennsylvania, USA
3. Pfizer Vaccine Research, Pfizer, Pearl River, New York, USA
4. UCL Institute of Child Health, London, United Kingdom
5. Department of Pediatrics and Center for Vaccine Evaluation and Study, Ewha Womans University School of Medicine, Seoul, South Korea
6. BioStat Consulting, LLC, Atlanta, Georgia, USA
7. GSK Vaccines, Rixensart, Belgium
8. FDA/CBER, Silver Spring, Maryland, USA
9. Lanzhou Institute of Biological Products, Lanzhou, China