7Ricci P, Cantisani V, Ballesio L, et al. Benign and malignant breast lesions: efficacy of real-time contrast-enhanced ultrasound vs magnetic resonance imaging[J]. Ultraschall Med, 2007,28 (1) :57-62.
8Hu Q, Wang XY, Zhu SY, et al. Meta analysis of contrast- enhanced ultrasound for the differentiation of benign and malignant breast lesions[J]. Acta Radiol, 2015,56 (1) : 25-33.