Kopans, D B Clip placement during sonographically guided breast biopsy. [electronic resource] - AJR. American journal of roentgenology Apr 2001 - 1076-7 p. digital Publication Type: Comment; Letter ISSN: 0361-803X Standard No.: 10.2214/ajr.176.4.1761076b doi Subjects--Topical Terms: Biopsy, Needle--instrumentationBreast--pathologyBreast Neoplasms--pathologyEquipment DesignFemaleHumansSurgical InstrumentsUltrasonography, Mammary--instrumentation