About the Authors

Toshio Arai

Affiliations Department of Environmental Parasitology, Graduate School of Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan, Department of Gastroenterology, Toukatsu Hospital, Nagareyama-shi, Chiba, Japan

Nobuaki Akao

ocha.vip@tmd.ac.jp

Affiliation Department of Environmental Parasitology, Graduate School of Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan

Takenori Seki

Affiliation Department of Environmental Parasitology, Graduate School of Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan

Takashi Kumagai

Affiliation Department of Environmental Parasitology, Graduate School of Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan

Hirofumi Ishikawa

Affiliation Department of Environmental Parasitology, Graduate School of Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan

Nobuo Ohta

Affiliation Department of Environmental Parasitology, Graduate School of Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan

Nobuto Hirata

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

So Nakaji

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Kenji Yamauchi

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Mitsuru Hirai

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Toshiyasu Shiratori

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Masayoshi Kobayashi

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Hiroyuki Fujii

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Eiji Ishii

Affiliation Department of Gastroenterology, Kameda Medical Center, Kamogawa, Chiba, Japan

Mikio Naito

Affiliation Department of Endoscopy, Kameda Medical Center, Kamogawa, Chiba, Japan

Shin-ichi Saitoh

Affiliation Department of Endoscopy, Kameda Medical Center, Kamogawa, Chiba, Japan

Toshikazu Yamaguchi

Affiliation Department of Gastroenterology, Toukatsu Hospital, Nagareyama-shi, Chiba, Japan

Nobumitsu Shibata

Affiliation Department of Pathology, Toukatsu Hospital, Nagareyama-shi, Chiba, Japan

Masamune Shimo

Affiliation Department of Pathology, Toukatsu Hospital, Nagareyama-shi, Chiba, Japan

Toshihiro Tokiwa

Affiliation Laboratory of Veterinary Pathology, Azabu University, Sagamihara, Kanagawa, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TA NA NO. Performed the experiments: TA NA. Analyzed the data: TA NA HI NO T. Seki NH. Contributed reagents/materials/analysis tools: TA NA TK NH SN KY MH T. Shiratori MK HF EI MN SS TY NS MS TT. Wrote the paper: TA NA NO.