Y Jiang1, S Y Hu2, L Hernandez Donoso3, X Li4, M H Zheng5, F H Zhao2. 1. Amaris, London, UK. 2. Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing, China. 3. GlaxoSmithKline Vaccines, Shanghai, China. 4. GlaxoSmithKline Vaccines, Wavre, Belgium. 5. GlaxoSmithKline Vaccines, Beijing, China.