Okamoto, Teppei
Hatakeyama, Shingo http://orcid.org/0000-0002-0026-4079
Kodama, Hirotake
Horiguchi, Hirotaka
Kubota, Yuka
Kido, Koichi
Momota, Masaki
Hosogoe, Shogo
Tanaka, Yoshimi
Takashima, Tooru
Saitoh, Fumitada
Suzuki, Tadashi
Ohyama, Chikara
Funding for this research was provided by:
Japan Society for the Promotion of Science (15K15579, 17K11119)
Article History
Received: 8 July 2017
Accepted: 14 March 2018
First Online: 20 March 2018
Ethics approval and consent to participate
: The study was conducted in accordance with the ethical standards of the Declaration of Helsinki and was approved by the Ethics Committee of Hirosaki University Graduate School of Medicine (authorization number 2016–225). For this type of retrospective study, formal patient consent is not required.
: Not applicable.
: The authors declare that they have no competing interests.
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