Affiliation: | (1) Department of Diagnostic Radiology and Nuclear Medicine, Imaging Research Laboratories, John P. Robarts Research Institute, 100 Perth Drive, PO Box 5015, N6A 5K8 London, Ontario, Canada;(2) Department of Medical Biophysics, Health Science Centre, University of Western Ontario, Room 115, Medical Science Building, N6C 5C1 London, Ontario, Canada;(3) Department of Radiology, University Hospital, 339 Windermere Road, N6A 5A5 London, Ontario, Canada |