1 Kelb TM, Lichy J, Newhouse JH : Comparison of the performance of screening mammography ,physical examination, and breast US and evaluation of factors that influence them : an analysis of 27,825 patient evaluations. Radiology 225(1) : 165-175, 2002
2 Berg WA, Blume JD, Cormack JB, et al : Combined screening with ultrasound with mammography vs mammography alone in women at elevated risk of breast cancer. JAMA 299(18) : 2151-2163, 2008