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)