1. Department of Hematology, Hospital Central de las FF.AA., Montevideo, Uruguay
2. Department of Hematology, Hospital de Clínicas, Montevideo, Uruguay
3. Department of Medical Oncology, Instituto Nacional de Enfermedades Neoplasicas, Lima, Peru
4. Department of Hematology, Hospital del Salvador, Santiago, Chile
5. Department of Hematology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
6. Department of Medical Oncology, Oncosalud—AUNA, Lima, Peru
7. Department of Hematology and Bone Marrow Transplantation, Instituto Oncológico Nacional, Panamá, Panamá
8. Department of Hematology, Universidad de Carabobo, Hospital Metropolitano del Norte, Carabobo, Venezuela
9. Department of Hematology, Hospital General Universitario Dr Gustavo Aldereguía Lima, Cienfuegos, Cuba
10. Department of Hematology, Hospital Hermanos Ameijeiras, La Habana, Cuba
11. Department of Hematology, Centro de Investigaciones Médico Quirúrgicas, La Habana, Cuba
12. Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX