[1
]
A*STAR-NUS Clinical Imaging and Research Centre (CIRC), Singapore 117599, Singapore.
[2
]
Center for Advanced Medical Imaging Sciences, Division of Nuclear Medicine and Molecular
Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114 and Radiology
Department, Harvard Medical School, Boston, Massachusetts 02115.
[3
]
Radiology Department, Harvard Medical School, Boston, Massachusetts 02115 Department
of Advanced Biomedical Sciences, University of Naples Federico II, Naples 80131, Italy;
and SDN Foundation, Institute of Diagnostic and Nuclear Development, Naples 80142,
Italy.