[1
]
Department of Gastroenterology Graduate School of Medicine, The University of Tokyo,
Tokyo, Japan.
[2
]
Division of Nuclear Medicine, Department of Radiology, Graduate School of Medicine,
The University of Tokyo, Tokyo, Japan.
[3
]
Department of Hematology and Oncology, Graduate School of Medicine, The University
of Tokyo, Tokyo, Japan.
[4
]
Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo,
Japan.