Engineering AvidCARs for combinatorial antigen recognition and reversible control of CAR function by Salzer, B, Schueller, CM, Zajc, CU, Peters, T, Schoeber, MA, Kovacic, B, Buri, MC, Lobner, E, Dushek, O, Huppa, JB, Obinger, C, Putz, EM, Holter, W, Traxlmayr, MW, Lehner, M