Pentavalent HIV-1 vaccine protects against simian-human immunodeficiency virus challenge. - Bradley T; Pollara J; Santra S; Vandergrift N; Pittala S; Bailey-Kellogg C; Shen X; Parks R; Goodman D; Eaton A; Balachandran H; Mach LV; et al. (Nature communications, 2017)