Silman, Christopher http://orcid.org/0000-0002-4253-2457
Matsumoto, Shunro
Ono, Asami
Kiyonaga, Maki
Otsuka, Kenichiro
Article History
Received: 8 November 2018
Accepted: 4 January 2019
First Online: 16 January 2019
Compliance with ethical standards
:
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation and with the Helsinki Declaration of 1975 (revised in 2008). This retrospective study was approved by our institutional review boards.