Broadly Neutralizing HIV Antibodies Define a Glycan-Dependent Epitope on the Prefusion Conformation of gp41 on Cleaved Envelope Trimers - Falkowska, E; Le, KM; Ramos, A; Doores, KJ; Lee, JH; Blattner, C; Ramirez, A; Derking, R; van, Gils MJ; Liang, C-H; Mcbride, R; von, Bredow B; et al. (IMMUNITY, 2014)