Nonmalignant papillary lesions of the breast at US-guided directional vacuum-assisted removal: a preliminary report. - Kim MJ; Kim EK; Kwak JY; Son EJ; Park BW; Kim SI; Oh KK; Kim, Min Jung; Kim, Eun-Kyung; Kwak, Jin Young; Son, Eun Ju; Park, Byeong-Woo; et al. (European Radiology, 2008)