P12: TREATMENTS IN PATIENTS WITH RELAPSED/REFRACTORY MULTIPLE MYELOMA: RETROSPECTIVE CHART REVIEW OF REAL-WORLD OUTCOMES FOR STANDARD OF CARE oleh M-C Vekemans, M Delforge, S Anguille, J Depaus, N Meuleman, A Van de Velde, I Vande Broek, D Strens, S Van Hoorenbeeck, EJ Moorkens, J Diels, F Ghilotti, S Dalhuisen, S Vandervennet