1. Intergroupe Francophone du Myélome, France
2. Institut National de la Santé et de la Recherche Médicale (INSERM), U1037, Toulouse, France
3. Hematology Laboratory, University Hospital Purpan, Toulouse, France
4. Hematology Department, University Hospital Purpan, Toulouse, France
5. CSA21, Toulouse, France