[1] NCI, NIH, Natl Clin Target Validat Lab, Div Canc Treatment & Diag, Bethesda, MD 20892 USA
[2] Natl Surg Adjuvant Breast & Bowel Project, Dept Biostat, Pittsburgh, PA USA
[3] Aultman Hlth Fdn, Dept Oncol, Canton, OH USA
[4] Natl Surg Adjuvant Breast & Bowel Project, Div Pathol, Pittsburgh, PA USA
[5] Natl Surg Adjuvant Breast & Bowel Project, Div Surg, Pittsburgh, PA USA