1. Myeloma Service, Memorial Sloan-Kettering Cancer Center, New York, NY;
2. Department of Medicine, Weill Medical College of Cornell University, New York, NY; and
3. Epidemiology and Biostatistics,
4. Adult Bone Marrow Transplantation Service,
5. Department of Medicine, and
6. Cardiology Service, Memorial Sloan-Kettering Cancer Center, New York, NY