Roberts T P, Brasch R C, Schwickert H C, Shames D M, vanDijke C F, Stiskal M, Mann J S, Mühler A, Demsar F
Department of Radiology, University of California, San Francisco 94143, USA.
Acad Radiol. 1996 Aug;3 Suppl 2:S282-5. doi: 10.1016/s1076-6332(96)80557-5.