Anionic microparticles are a potent delivery system for recombinant antigens from Neisseria meningitidis serotype B - Singh, M; Kazzaz, J; Chesko, J; Soenawan, E; Ugozzoli, M; Giuliani, M; Pizza, M; Rappouli, R; O'Hagan, DT (JOURNAL OF PHARMACEUTICAL SCIENCES, 2004)