Hasegawa, Mizue http://orcid.org/0000-0001-6680-734X
Sakai, Fumikazu http://orcid.org/0000-0002-1041-5117
Konda, Naoko http://orcid.org/0000-0002-7592-131X
Okabayashi, Asako
Katsura, Hideki http://orcid.org/0000-0002-9180-7605
Seto, Yohei http://orcid.org/0000-0002-6129-1193
Article History
Received: 16 October 2017
Accepted: 4 February 2018
First Online: 12 February 2018
Compliance with ethical standards
:
: Mizue Hasegawa, Fumikazu Sakai, Naoko Konda, Asako Okabayashi, Hideki Katsura, and Yohei Seto declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Protocol number: 3903. Date of approval: 25 Apr 2016. Approving institution: Tokyo Women’s Medical University, Tokyo, Japan.
: For this type of study formal consent is not required.
: FORTE (ExternalRef removed).