H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL. Dana Farber Cancer Institute-ECOG-ACRIN Biostatistics Center, Boston, MA. Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY. University of Rochester, New York, NY. Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH. Northwestern University, Chicago, IL. Saint John's Hospital, Maplewood, MN. Penn State Cancer Center, Hershey, PA. University of Pennsylvania, Philadelphia, PA. University of Wisconsin, Madison, WI. Waukesha Memorial Hospital, Waukesha, WI. City of Hope National Medical Center, Duarte, CA. Karmanos Cancer Institute, Wayne State University, Detroit, MI. Mayo Clinic, Rochester, MN. Leukemia Service, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY.