Lorigan J G, David C L, Shirkhoda A, Eftekhari F, Alexanian R
Division of Diagnostic Imaging, University of Texas System Cancer Center, MD Anderson Hospital and Tumor Institute, Houston 77030.
Br J Radiol. 1988 Nov;61(731):1077-8. doi: 10.1259/0007-1285-61-731-1077.