Transient Inhibition of PI3Kδ Enhances the Therapeutic Effect of Intravenous Delivery of Oncolytic Vaccinia Virus. - Ferguson MS; Chard Dunmall LS; Gangeswaran R; Marelli G; Tysome JR; Burns E; Whitehead MA; Aksoy E; Alusi G; Hiley C; Ahmed J; Vanhaesebroeck B; et al. (Molecular therapy : the journal of the American Society of Gene Therapy, 2020)