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Takayoshi Nishino
Institute of Gustroenterology, Department of Medicine, Tokyo Women's Medical University, School of Medicine
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Fumitake Toki
Toki Clinic
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Itaru Oi
Institute of Gustroenterology, Department of Endoscopy, Tokyo Women's Medical University, School of Medicine
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Hiroyasu Oyama
Department of Clinical Laboratory, Tokyo Women's Medical University, School of Medicine
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Keiko Shiratori
Institute of Gustroenterology, Department of Medicine, Tokyo Women's Medical University, School of Medicine