PhD Conferral Mrs. Niken M. Mahaweni, MSc. 19 December 2018 10:00 Supervisors: prof.dr. G.M.J. Bos, prof.dr. M.G.J. Tilanus Co-supervisor: dr. L. Wieten “Refining natural killer cell-based immunotherapy: Strategies to unleash the killer in a suppressive tumor microenvironment”