About the Authors

Masuomi Tomita

Contributed equally to this work with: Masuomi Tomita, Takahiro Maeda

Current address: 1-4-17, Mita, Minato-ku, Tokyo, Japan

Affiliation Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Eiji Kikuchi

eiji-k@kb3.so-net.ne.jp

Current address: 35 Shinano-machi, Shinjuku-ku, Tokyo, Japan

Affiliation Department of Urology, Keio University School of Medicine, Tokyo, Japan

Takahiro Maeda

Contributed equally to this work with: Masuomi Tomita, Takahiro Maeda

Current address: 1-4-17, Mita, Minato-ku, Tokyo, Japan

Affiliation Department of Urology, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Yusuke Kabeya

Affiliation Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Takeshi Katsuki

Affiliation Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Yoichi Oikawa

Affiliation Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Kiyoe Kato

Affiliation Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Masakazu Ohashi

Current address: 3-1-24, Imagawa, Suginami-ku, Tokyo, Japan

Affiliation Department of Urology, Ogikubo Hospital, Tokyo, Japan

So Nakamura

Affiliation Department of Urology, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Mototsugu Oya

Affiliation Department of Urology, Keio University School of Medicine, Tokyo, Japan

Akira Shimada

Affiliation Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MT EK TM M. Ohashi. Performed the experiments: MT EK TM YK TK. Analyzed the data: MT EK TM. Contributed reagents/materials/analysis tools: MT EK TM YK TK. Wrote the paper: MT EK TM M. Ohashi. Final approval of the complete article: MT EK TM YK TK YO KK M. Ohashi SN M. Oya AS.