[1] Natl Surg Adjuvant Breast & Bowel Project NSABP, Pittsburgh, PA USA
[2] Allegheny Gen Hosp, Pittsburgh, PA 15212 USA
[3] NSABP, Pittsburgh, PA USA
[4] Univ Pittsburgh, Grad Sch Publ Hlth, Dept Biostat, Pittsburgh, PA 15261 USA
[5] NSABP William Beaumont Hosp, Royal Oak, MN USA
[6] Med Coll Wisconsin, RTOG, Milwaukee, WI 53226 USA
[7] RTOG, Philadelphia, PA USA
[8] Virginia Commonwealth Univ, NSABP, Richmond, VA USA
[9] Arizona Breast Canc Specialists, NSABP, Scottsdale, AZ USA
[10] Univ Colorado Hosp, RTOG, Aurora, CO USA
[11] RTOG Emory Univ, Atlanta, GA USA
[12] NSABP Allegheny Gen Hosp, Pittsburgh, PA USA