1. Department of Infectious Diseases, Hospital del Niño Dr. José Renán Esquivel
2. Vaccine Research Department, Centro de Vacunación Internacional
3. Sistema Nacional de Investigación
4. Secretaria Nacional de Ciencia y Tecnologia , Panama City , Panama
5. Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo , Ribeirão Preto, São Paulo , Brazil
6. Department of Infectious Diseases, Hospital de Especialidades Pediátricas Omar Torrijos Herrera, Caja de Seguro Social , Panama City , Panama
7. Unidad de Investigación, Grupo Instituto Hispalense de Pediatria, Sevilla
8. FISABIO Fundación para el Fomento Investigación Sanitaria y Biomédica de la Comunitat Valenciana, Centro de Investigación Biomédica en Red of Epidemiology and Public Health , Valencia , Spain
9. Centro de Estudios en Infectología Pediátrica, Department of Pediatrics, Universidad del Valle, Clínica Imbanaco, Grupo Quironsalud , Cali , Colombia
10. Pediatric Infectious Diseases Unit, Department of Pediatrics, Hospital Universitario 12 de Octubre, Research and Clinical Trials Unit, Instituto de Investigación Sanitaria Hospital 12 de Octubre, Fundación para la Investigación Biomédica del Hospital 12 de Octubre , Madrid , Spain
11. Oddział Dziecięcy, Zespół Opieki Zdrowotnej w Dębicy , Dębica
12. Department of Pediatrics, St Hedwig of Silesia Hospital , Trzebnica , Poland
13. Department of Pediatrics, Centre Hospitalier Universitaire de Québec, Université Laval , Québec , Canada
14. Department of Pediatric Infectious Diseases, Faculty of Medicine, Erciyes University , Kayseri , Turkey
15. Department of Vaccines, Cevaxin Sede David , Chiriquí , Panama
16. Department of Pediatrics, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir , Turkey
17. Departamento de Pediatría, Hospital Universitario Puerta de Hierro-Majadahonda, Departamento de Pediatría, Universidad Autónoma de Madrid , Madrid , Spain
18. Department of Social Pediatrics, Faculty of Medicine, Dokuz Eylul University , Izmir , Turkey
19. Instituto Nacional de Pediatria , General Director, Mexico City , Mexico
20. Canadian Center for Vaccinology, Dalhousie University, IWK Health and Nova Scotia Health , Halifax , Canada
21. Translational Pediatrics and Infectious Diseases Section, Pediatrics Department, Hospital Clínico Universitario de Santiago de Compostela , Santiago de Compostela
22. Vaccines, Infections and Pediatrics Research Group, Healthcare Research Institute of Santiago de Compostela , Santiago de Compostela
23. Centro de Investigación Biomédica en Red of Respiratory Diseases, Instituto de Salud Carlos III , Madrid , Spain
24. Vaccine Research Center, Tampere University , Tampere , Finland
25. Department of Pediatrics with Clinical Assessment Unit, Medical University of Warsaw , Warsaw , Poland
26. Department of Pediatrics, School of Medicine, Federal University of Minas Gerais , Belo Horizonte , Brazil
27. Department of Pediatrics, Faculty of Medicine, Chulalongkorn University , Bangkok , Thailand
28. Servicio de Pediatría, Enfermedades Infecciosas y Tropicales, Hospital Universitario Infantil La Paz, Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, ISCIII , Madrid , Spain
29. Centro Vaccinazioni, Dipartimento Pediatrico Universitario Ospedaliero, Istituti di Ricovero e Cura a Carattere Scientifico, Ospedale Pediatrico Bambino Gesù, Lazio , Rome , Italy
30. Department of Pediatrics, Nuevo Hospital Universitario de Burgos , Burgos
31. Department of Pediatrics, Universidad Complutense–Instituto de Investigación Sanitaria del Hospital Clínico San Carlos
32. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas , Madrid , Spain
33. Department of Pediatrics and Infectious Diseases, Wroclaw Medical University , Wroclaw , Poland
34. Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal , Montreal , Canada
35. Departments of Pediatrics and Medicine, Emory University School of Medicine , Atlanta, Georgia
36. Center for Vaccine Development and Global Health, Department of Pediatrics, University of Maryland School of Medicine , Baltimore, Maryland
37. National Institute for Health and Care Research Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton National Health Service Foundation Trust, and Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton , United Kingdom
38. GSK, Biostatistics , Rockville, Maryland
39. GSK , Vaccines, Wavre , Belgium