1. National Institutes for Quantum and Radiological Science and Technology (QST), National Institute of Radiological Sciences (NIRS); Department of Molecular Imaging and Theranostics; 4-9-1 Anagawa, Inage-ku Chiba 263-8555 Japan
2. PRESTO; Japan Science and Technology Agency; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan