1. Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital (MGH) & Department of Radiology, Harvard Medical School, Boston, MA, USA
2. Advion, Inc, Ithaca, NY, USA
3. Clinical and Translational Imaging, Worldwide Research and Development, Pfizer Inc, Cambridge, MA, USA
4. Medicinal Sciences, Pfizer Inc, La Jolla, CA, USA
5. Waterhouse Imaging and Biomarker Consultants, Chester, NH, USA