Differential requirements for CD4+ T cells in the efficacy of the anti-PD-1+LAG-3 and anti-PD-1+CTLA-4 combinations in melanoma flank and brain metastasis models ================================================================================================================================================================= * Manali S Phadke * Jiannong Li * Zhihua Chen * Paulo C Rodriguez * Jessica K Mandula * Lilit Karapetyan * Peter A Forsyth * Y Ann Chen * Keiran S M Smalley