P899: REAL-WORLD ASSESSMENT OF TREATMENT PATTERNS AND OUTCOMES IN PATIENTS WITH LENALIDOMIDE-REFRACTORY RELAPSED/REFRACTORY MULTIPLE MYELOMA FROM THE OPTUM DATABASE

oleh: B. Dhakal, H. Einsele, R. Potluri, J. Schecter, W. Deraedt, N. Lendvai, A. Slaughter, C. Lonardi, S. Nair, J. He, N. Joseph, P. Cost, S. Valluri, F. Yalniz, L. Pacaud, K. Yong