Characterization of meningococcal serogroup B outer membrane vesicle vaccines from strain 44/76 after growth in different media. by Tsolakos, N, Lie, K, Bolstad, K, Maslen, S, Kristiansen, P, Høiby, E, Wallington, A, Vipond, C, Skehel, M, Tang, C, Feavers, I, Wedege, E, Wheeler, J