Kawamoto, R.
Ninomiya, D.
Kasai, Y.
Senzaki, K.
Kusunoki, T.
Ohtsuka, N.
Kumagi, T.
Article History
Received: 24 October 2017
Accepted: 27 December 2017
First Online: 19 February 2018
Compliance and ethical standards
:
: The authors declare that they have no competing interests.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee at which the studies were conducted (IRB Approval number: 1402009).
: We obtained consent through the opt-out procedure from all individual participants included in the study.