Katzberg R W, Dumoulin C L, Buonocore M A, Opsahl L R, Darrow R D, Morris T W
Department of Radiology, University of California, Davis Medical Center at Sacramento 95817.
Invest Radiol. 1994 Jun;29 Suppl 2:S123-6. doi: 10.1097/00004424-199406001-00041.