title: Erratum to: A randomized double-blind multi-center trial of hydrogen water for Parkinson's disease: protocol and baseline characteristics.
authors.affiliation: Department of Neurology, Juntendo University Koshigaya Hospital, Fukuroyama 560, Koshigayashi, Saitama, 343-0032, Japan. ayori@juntendo.ac.jp.|Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan. ayori@juntendo.ac.jp.
authors.forename: Asako
authors.initials: A
authors.lastname: Yoritaka
authors.affiliation: Department of Neurology, Abe Neurological Clinic, Iwate, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Abe
authors.affiliation: Department of Neurology and Gerontology, Iwate Medical University, Iwate, Japan.
authors.forename: Chigumi
authors.initials: C
authors.lastname: Ohtsuka
authors.affiliation: Department of Neurology, Research Institute for Brain and Blood Vessels-Akita Hospital, Akita, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Maeda
authors.affiliation: Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Aichi, Japan.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Hirayama
authors.affiliation: Brain and Mind Research Center, Nagoya University Graduate School of Medicine, Aichi, Japan.
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Watanabe
authors.affiliation: Department of Neurology, Kitano Hospital, The Tazuke Kofukai Medical Research Institute, Osaka, Japan.
authors.forename: Hidemoto
authors.initials: H
authors.lastname: Saiki
authors.affiliation: Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan.
authors.forename: Genko
authors.initials: G
authors.lastname: Oyama
authors.affiliation: Department of Neurology, Fukuoka University, Fukuoka, Japan.
authors.forename: Jiro
authors.initials: J
authors.lastname: Fukae
authors.affiliation: Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Shimo
authors.affiliation: Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan.
authors.forename: Taku
authors.initials: T
authors.lastname: Hatano
authors.affiliation: Department of Neurology, Juntendo University Shizuoka Hospital, Shizuoka, Japan.
authors.forename: Sumihiro
authors.initials: S
authors.lastname: Kawajiri
authors.affiliation: Department of Neurology, Juntendo University Shizuoka Hospital, Shizuoka, Japan.
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Okuma
authors.affiliation: Department of Neurology, Juntendo University Nerima Hospital, Tokyo, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Machida
authors.affiliation: Department of Neurology, Juntendo University Nerima Hospital, Tokyo, Japan.
authors.forename: Hideto
authors.initials: H
authors.lastname: Miwa
authors.affiliation: Department of Diagnostic Radiology, Department of Molecular Medicine and Surgery, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden.
authors.forename: Chikako
authors.initials: C
authors.lastname: Suzuki
authors.affiliation: Nozomi Hospital, Saitama, Japan.
authors.forename: Asuka
authors.initials: A
authors.lastname: Kazama
authors.affiliation: Department of Neurology, Aomori Prefectural Central Hospital, Aomori, Japan.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Tomiyama
authors.affiliation: Department of Neurology, Rakuwakai Otowa Rehabilitation Hospital, Kyoto, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kihara
authors.affiliation: Department of Neurology, Tokyo Rinkai Hospital, Tokyo, Japan.
authors.forename: Motoyuki
authors.initials: M
authors.lastname: Hirasawa
authors.affiliation: Department of Neurology, Juntendo University Urayasu Hospital, Chiba, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Shimura
authors.affiliation: Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan.
authors.forename: Nobutaka
authors.initials: N
authors.lastname: Hattori