1. Medical College of Wisconsin, Froedtert Clinical Cancer Center Division of Hematology/Oncology Milwaukee Wisconsin USA
2. The University of Texas MD Anderson Cancer Center Department of Lymphoma & Myeloma Houston Texas USA
3. Myeloma Service, Department of Medicine Memorial Sloan Kettering Cancer Center New York New York USA
4. Myeloma Center, Division of Hematology/Oncology, Winthrop P. Rockefeller Cancer Institute University of Arkansas for Medical Sciences Little Rock Arkansas USA
5. Janssen Pharmaceuticals Beerse Belgium