Acknowledgement
We wish to express our deepest appreciation to Mr. Ichiro Sato and Mr. Taiki Ogawa at KSM Co., Ltd. for creating the mouthpiece; to Mr. Shoichi Uratani, Ms. Rieko Takahashi, and Mr. Kenichi Tabata at the Advanced Technology Center, corporate R&D headquarters, Konica Minolta, Inc. for their basic experimental support; to Mr. Tsuyoshi Ishibashi and Ms. Emiko Hayashi at the Medical Industry Cluster Promotion Unit, Fukushima Prefectural Government; to Mr. Keita Suzuki at the Fukushima Medical Device Industry Promotion Agency for their advice on this study; to Dr. Ryoichiro Kobashi at the Department of Endoscopy, Fukushima Medical University Hospital; and to Dr. Hiroshi Shimizu and Dr. Naoto Abe at the Department of Gastroenterology, Fukushima Medical University for their basic experimental support and advice on this study.
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