1. Department of Radiology, Department of Internal Medicine, and The Radiopharmaceutical Sciences Institute, University of Missouri-Columbia School of Medicine, Columbia, Missouri 65211, University of Missouri Research Reactor Center, University of Missouri-Columbia, Columbia, Missouri 65211, Research Division, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri 65201, Departamento de Química, Instituto Tecnológico e Nuclear, 2686-953, Sacavém, Portugal, Department of Nuclear Medicine,...