Matsumoto, Satohiro http://orcid.org/0000-0001-7802-3980
Otake, Haruka
Sekine, Masanari
Uehara, Takeshi
Miyatani, Hiroyuki
Mashima, Hirosato
Article History
First Online: 7 May 2019
Compliance with Ethical Standards
:
: No sources of funding were received for the preparation of this article.
: Satohiro Matsumoto, Haruka Otake, Masanari Sekine, Takeshi Uehara, Hiroyuki Miyatani, and Hirosato Mashima have no conflicts of interest that are directly relevant to the content of this article.
: All procedures in this study were in accordance with the 1964 Helsinki Declaration (and its amendments). This study was conducted with the approval of The Etiological Study Ethical Review Board of Saitama Medical Center, Jichi Medical University.
: Patient consent was not required for this retrospective study.