Computed Tomography, Ultrasound and Scintigraphy of the Liver in Patients with Colon or Breast Carcinoma: a Prospective Comparison - Alderson, P. O; Adams, D. F; McNeil, B. J; Sanders, R; Siegelman, S. S; Finberg, H. J; Hessel, S. Y; Abrams, H. L (Radiology, 1983)