Buettcher Michael, Heininger Ulrich, Braun Miles, Bonhoeffer Jan, Halperin Scott, Heijbel Harald, de Menezes Martins Reinaldo, Vermeer-de Bondt Patricia
University Children's Hospital, Basel, Switzerland.
Vaccine. 2007 Aug 1;25(31):5875-81. doi: 10.1016/j.vaccine.2007.04.061. Epub 2007 May 8.