Gene Expression Profiling (Gep) Analysis Of Cd138-Purified Plasma Cells (Pc) Obtained From M Ri-Defined Focal Lesions (Fl) Under Ct Guidance: Applying The 70 Gene Risk Model And Comparison With Data Generated On Random Samples (Rs) From Multiple Myeloma (Mm) Treated With Total Therapy 2, 3, 4, And 5 (Tt2, Tt3, Tt4, And Tt5)