1. Department of Nuclear Medicine, Huashan Hospital, Fudan University, No. 12 Urumchi Middle Road, Jing’an District, Shanghai 200040, China
2. Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
3. Department of Nuclear Medicine, Pudong Hospital, Fudan University, 2800 Gongwei Road, Huinan Town, Pudong New District, Shanghai 200120, China
4. Molecular Imaging Program at Stanford (MIPS), Bio-X Program, and Department of Radiology, Canary Center at Stanford for Cancer Early Detection, Stanford University, Stanford, California 94305-5344, United States