1. Department of Radiology, Division of Nuclear Medicine and Molecular ImagingMassachusetts General Hospital and Harvard Medical School 55 Fruit Street Boston MA 02114 USA
2. Department of Radiopharmaceuticals Development, National Institute of Radiological SciencesNational Institutes for Quantum and Radiological Science and Technology Chiba 263-8555 Japan
3. Hubei Collaborative Innovation Centre for Non-power Nuclear Technology, College of Nuclear Technology & Chemistry and BiologyHubei University of Science and Technology Xianning China
4. Department of Nuclear Medicine and PET/CT-MRI Centerthe First Affiliated Hospital of Jinan University & Institute of Molecular and Functional ImagingJinan University Guangzhou 510630 China
5. Department of Chemistry and BiochemistryUniversity of Oklahoma Norman OK 73019 USA