1. Center
for Diagnostics and Therapeutics, Center for Biotechnology and Drug
Design, Department of Chemistry, Georgia State University, Petit
Science Center, 100 Piedmont Ave SE, Atlanta, Georgia 30303, United States
2. Gordon
Center for Medical Imaging, Division of Nuclear Medicine and Molecular
Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, United States