Leroux-Roels I, Devaster JM, Leroux-Roels G, Verlant V, Henckaerts I, Moris P, Hermand P, Van Belle P, Poolman JT, Vandepapelière P, Horsmans Y. Adjuvant system AS02V enhances humoral and cellular immune responses to pneumococcal protein PhtD vaccine in healthy young and older adults: Randomised, controlled trials. Vaccine 2015; 33: 577-84