Funding for this research was provided by:
Kikkoman Corporation (2136)
Dairy Products Health Science Council & Japan Dairy Association. (A229)
Received: 29 August 2017
Accepted: 25 January 2018
First Online: 2 February 2018
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the Medical Research Ethics Committee of Tokyo Medical and Dental University (No. 1359), and written informed consent was obtained from all participants. This study was conducted in accordance with the Declaration of Helsinki.
: Not applicable
: MT received an unrestricted research grant from Kikkoman Corporation and the Dairy Products Health Science Council & Japan Dairy Association.
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