1. Pfizer Vaccine Clinical Research and Development, Pfizer Pharma GmbH, Berlin, Germany
2. Biostatistics, Syneos Health, Stonewall, LA, USA
3. Pfizer Vaccine Clinical Research and Development, Tokyo, Japan
4. Pfizer Vaccines Clinical Research & Development, Collegeville, PA, USA
5. Pfizer Vaccines Clinical Research & Development, Pearl River, NY, USA