%0 Journal Article %T Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide %A Shigeki Ito %A Tatsuo Oyake %A Kazunori Murai %A Yoji Ishida %J Case Reports in Hematology %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/651902 %U http://dx.doi.org/10.1155/2013/651902