Elicitation of stem-directed antibodies in rhesus macaques by a conventional hemagglutinin immunogen. - Gu S; Finney J; Luo K; Valencia SM; Mielke D; Von Holle TA; Marshall DJ; Parks R; Sutherland LL; Scearce RM; Wiehe K; Santra S; et al. (BioRxiv : the preprint server for biology, 2026)