1. National and Kapodistrian University of Athens, Athens, Greece,
2. University of Turin, Turin, Italy;
3. University of Milan, Fondazione IRCCS Istituto Nazionale de Tumori, Milan, Italy;
4. Bologna University School of Medicine, Bologna, Italy;
5. University Hospital Leuven, Leuven, Belgium;
6. University of Catania, Catania, Italy;
7. University Hospital of Tuebingen, Tuebingen, Germany;
8. Institut Català d’Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Barcelona, Spain;
9. Skane University Hospital, Lund University, Lund, Sweden;
10. University of Bari Medical School, Bari, Italy;
11. Hospital Ramón y Cajal, Madrid, Spain,
12. University Hospital Heidelberg and German Cancer Research Center, Heidelberg, Germany,
13. Université Catholique de Louvain, Centre Hospitalier Universitaire, Université Catholique de Louvain Namur, Yvoir, Belgium;
14. The Royal Marsden Hospital, Surrey, United Kingdom;
15. Santa Chiara Hospital, University of Pisa, Pisa, Italy;
16. Helsinki University Hospital Comprehensive Cancer Center and University of Helsinki, Helsinki, Finland;
17. Hospedale Niguarda Ca' Granda, Milan, Italy;
18. University Medical Center Utrecht, Utrecht, The Netherlands;
19. Clinica Universidad de Navarra, Centro de Investigación Médica Aplicada, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain;
20. Hospital General Universitario Morales Meseguer, Murcia, Spain;
21. Wurzburg University Medical Center, Wurzburg, Germany;
22. Universitatsklinikum, Medizinsche Klinik und Poliklinik I, Dresden, Germany;
23. Complejo Asistencial Universitario de Salamanca Centro Investigación del Cáncer–Instituto de Biología Molecular y Celular del Cancer) Cancer Research Center, Salamanca, Spain;
24. Myeloma Institute for Research and Therapy, University of Arkansas Medical School, Little Rock, AR;
25. Celgene International Sàrl, Boudry, Switzerland;
26. Celgene Corporation, Summit, NJ; and
27. University Hospital Hotel‐Dieu, Nantes, France