Merozoite antigens of Plasmodium falciparum elicit strain-transcending opsonizing immunity by Hill, D, Wilson, D, Sampaio, N, Eriksson, E, Ryg-Cornejo, V, Harrison, G, Uboldi, A, Robinson, L, Beeson, J, Siba, P, Cowman, A, Hansen, D, Mueller, I, Schofield, L