tokens: This retrospective study investigated the combination of bort ( 1 . 3 mg / m ( 2 ) on days 1 , 4 , 8 , and 11 every 3 weeks ) and dex ( 20 mg on the day of and the day after bort ) as salvage treatment in 85 patients with R / R MM after prior autologous stem cell transplantation or conventional chemotherapy .