1. GSK Vaccines Institute for Global Health, 53100 Siena, Italy
2. GSK, 53100 Siena, Italy
3. CIC bioGUNE, Basque Research Technology Alliance, BRTA, Bizkaia Technology Park, 48160 Derio, Spain
4. IKERBASQUE, Basque Foundation for Science and Technology, Euskadi Plaza 5, 48009 Bilbao, Spain
5. Department of Organic & Inorganic Chemistry, Faculty of Science and Technology, University of the Basque Country, 48940 Leioa, Spain
6. Centro de Investigación Biomédica En Red de Enfermedades Respiratorias, 28029 Madrid, Spain