Dept. of Hematology/Oncology, Taussig Cancer Institute, Cleveland, OH, United States. Electronic address: advania@ccf.org. SWOG Statistical Center, Seattle, WA, United States. Medical College of Wisconsin, Milwaukee, WI, United States. Dept. of Medicine, Division of Hematology, Stanford University, Stanford, CA, United States. Dept. of Hematologic Malignancies, Moffit Cancer Center and Research Institute, Tampa, FL, United States. James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, United States. University of Alabama and Birmingham and UAB Comprehensive Cancer Center, Birmingham, AL, United States. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.