Evan's work on cytokine stimulation of primary, ex vivo expanded NK cells is published in Molecular Immunology:
IL-18/IL-15/IL-12 synergy induces elevated and prolonged IFN-γ production by ex vivo expanded NK cells which is not due to enhanced STAT4 activation.
Lusty E, Poznanski SM, Kwofie K, Mandur TS, Lee DA, Richards CD, Ashkar AA.
Mol Immunol. 2017 Aug; 88:138-147. doi 10.1093/infdis/jix252.