1. Institute of Laboratory Medicine and Vaccination Centre, Klinikum Würzburg Mitte, Standort Juliusspital, Würzburg, Germany
2. Pediatric Practice, Kehl, Baden-Württemberg, Germany
3. Pediatric Practice, Bramsche, Germany
4. Pediatric Practice, Mönchengladbach, Germany
5. GSK, Bangalore, India
6. GSK, Wavre, Belgium
7. Pediatric Practice, Mannheim, Germany