Dimopoulos, M. Weisel, K. Moreau, P. Anderson, L.D., Jr. White, D. San-Miguel, J. Sonneveld, P. Engelhardt, M. Jenner, M. Corso, A. Dürig, J. Pavic, M. Salomo, M. Casal, E. Srinivasan, S. Yu, X. Nguyen, T.V. Biyukov, T. Peluso, T. Richardson, P., Pomalidomide, bortezomib, and dexamethasone for multiple myeloma previously treated with lenalidomide (OPTIMISMM): outcomes by prior treatment at first relapse, Leukemia Research, (35), 1722-1731, 2021, Springer Nature BV, 0145-2126