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2. An assessment of ultrasound scanning in the recognition of colorectal metastases;Lamb, G.; Taylor, I.;Ann R Coll Surg,1982
3. Clinical significance of focal echogenic liver lesions;Pen, J.H.; Pelckmans, P.A.; van Maercke, Y.M.;Gastrointest Radiol
4. Sonography for space-occupying lesions in the liver;Fusco, G.; Aglini, S.;Rays,1987
5. Accuracy of dynamic ultrasongraphy in the diagnosis of malignant liver lesions;Holm, J.; Jacobsen, B.;J Ultrasound Med,1986