1. Institute of Laboratory Medicine and Vaccination Centre, Klinikum Würzburg Mitte, Standort Juliusspital, Würzburg, Germany
2. Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
3. Department of Pediatrics, Fundación de Santa Fe de Bogotá, Bogota, Colombia
4. Practice for Pediatric and Adolescent Medicine, Mannheim, Germany
5. Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
6. GSK, Wavre/Rixensart, Belgium
7. GSK, King of Prussia, PA, USA
8. Takeda Pharmaceuticals, Glattpark-Opfikon, Zurich, Switzerland