1. Siemens Molecular Imaging, Inc., Culver City, CA, USA
2. Tu and Yuen Center for Functional Onco-Imaging, Department of Radiological Sciences, University of California Irvine, CA, USA
3. Shankle Clinic Memory and Cognitive Disorders Program, Hoag Neurosciences Institute, Newport Beach, CA, USA
4. University Hospitals – Case Medical Center, Department of Neurology, Cleveland, OH, USA