Brown R C, Zuehlke R L, Ehrhardt J C, Jochimsen P R
Radiology. 1981 Mar;138(3):583-4. doi: 10.1148/radiology.138.3.7465832.
Calcifications in the breast parenchyma and pigments used in tattooing the skin are indistinguishable on xeroradiographs.
乳腺实质内的钙化与用于皮肤纹身的色素在干板X线片中无法区分。