A trimeric, V2-deleted HIV-1 envelope glycoprotein vaccine elicits potent neutralizing antibodies but limited breadth of neutralization in human volunteers. - Spearman P; Lally MA; Elizaga M; Montefiori D; Tomaras GD; McElrath MJ; Hural J; De Rosa SC; Sato A; Huang Y; Frey SE; Sato P; et al. (Journal of Infectious Diseases, 2011)