Using CombiCells, a platform for titration and combinatorial display of cell surface ligands, to study T-cell antigen sensitivity modulation by accessory receptors by Patel, A, André, V, Bustamante Eguiguren, S, Barton, MI, Burton, J, Denham, EM, Pettmann, J, Mørch, AM, Kutuzov, MA, Siller-Farfán, JA, Dustin, M, van der Merwe, PA, Dushek, O