1. Epidemiology and Pharmacovigilance, P95, Koning Leopold III Iaan 1, Leuven, Belgium.
2. Vaccines, Pfizer Corporation Austria, Wien, Vienna, Austria.
3. Vaccines Medical Affairs, Pfizer Ltd, Walton Oaks, Tadworth, United Kingdom.
4. Vaccine Clinical Research and Development, Pfizer Inc, Pearl River, New York, USA.
5. Vaccines Medical Development and Scientific/Clinical Affairs, Pfizer Inc, Collegeville, Pennsylvania, USA.