[1] Thomas Jefferson Univ, Jefferson Med Coll, Dept Surg, Philadelphia, PA 19107 USA
[2] European Sch Oncol, Milan, Italy
[3] Paris Breast Ctr, Paris, France
[4] Western Gen Hosp, Edinburgh Breast Unit, Edinburgh EH4 2XU, Midlothian, Scotland
[5] Guys Hosp, Dept Surg Oncol, London SE1 9RT, England
[6] Tech Univ Munich, Dept Breast Imaging & Intervent, D-8000 Munich, Germany
[7] Univ Nijmegen, Med Ctr, Natl Expert & Training Ctr Breast Canc Screening, Nijmegen, Netherlands
[8] Massachusetts Gen Hosp, Avon Comprehens Breast Evaluat Ctr, Boston, MA 02114 USA
[9] Jewish Gen Hosp, Dept Surg, Montreal, PQ, Canada
[10] Univ British Columbia, Div Radiat Oncol, Victoria, BC, Canada
[11] British Columbia Canc Agcy, Victoria, BC, Canada
[12] Jefferson Med Coll, Dept Pathol, Philadelphia, PA USA
[13] Univ Penn, Sch Med, Dept Radiat Oncol, Philadelphia, PA 19104 USA