1. From the Division of Nuclear Medicine, Department of Radiology, University of Washington, 1959 NE Pacific St, Box 356113, Seattle, WA 98195-6113 (G.A., M.I., H.S., J.A., F.B.); Department of Nuclear Medicine, Istanbul Research and Training Hospital, Istanbul, Turkey (B.Y.G.); and Rizk Hospital, Lebanese American University Medical Center, Beirut, Lebanon (R.A.).