Funding for this research was provided by:
Health Labour Sciences Research Grants, The Ministry of Health, Labour and Welfare, Japan
Text and Data Mining valid from 2019-02-01
Received: 4 November 2018
Accepted: 3 January 2019
First Online: 1 February 2019
Compliance with Ethical Standards
: Masaki Matsushita, Hiroshi Kitoh, Kenichi Mishima, Satoshi Yamashita, Nobuhiko Haga, Sayaka Fujiwara, Keiichi Ozono, Takuo Kubota, Taichi Kitaoka, and Naoki Ishiguro have no commercial associations that might pose a conflict of interest in connection with the submitted article.
: This study complied with ethical standards of research involving human participants and was approved by the Ethics Review Committee of Nagoya University Graduate School of Medicine (Reference Number: 2015-0412). Informed consent was obtained from all patients.