Fishman E K, Magid D, Ney D R, Chaney E L, Pizer S M, Rosenman J G, Levin D N, Vannier M W, Kuhlman J E, Robertson D D
Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21205.
Radiology. 1991 Nov;181(2):321-37. doi: 10.1148/radiology.181.2.1789832.