Impact of prior lenalidomide or proteasome inhibitor exposure on the effectiveness of ixazomib–lenalidomide–dexamethasone for relapsed/refractory multiple myeloma: A pooled analysi... de réir Lee, HC, Ramasamy, K, Macro, M, Davies, FE, Abonour, R, van Rhee, F, Hungria, VTM, Puig, N, Ren, K, Silar, J, Enwemadu, V, Cherepanov, D, Leleu, X