P12: TREATMENTS IN PATIENTS WITH RELAPSED/REFRACTORY MULTIPLE MYELOMA: RETROSPECTIVE CHART REVIEW OF REAL-WORLD OUTCOMES FOR STANDARD OF CARE. (5th April 2022) - Vekemans, M-C; Delforge, M; Anguille, S; Depaus, J; Meuleman, N; Van de Velde, A; Vande Broek, I; Strens, D; Van Hoorenbeeck, S; Moorkens, EJ; Diels, J; Ghilotti, F; et al.