From the National Surgical Adjuvant Breast and Bowel Project; Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh; Allegheny General Hospital, Pittsburgh, PA; University of Florida, Gainesville, FL; Helen F. Graham Cancer Center, Newark, DE; University of North Carolina, Chapel Hill; Southeast Cancer Control Consortium – Community Clinical Oncology Program, Goldsboro, NC; Atlanta Cancer Care, Atlanta, GA; Kaiser Permanente, Northern California, Vallejo, CA; Florida... (At 2009-07-10)