Nakamura, H
Jinzu, H
Nagao, K
Noguchi, Y
Shimba, N
Miyano, H
Watanabe, T
Iseki, K
Article History
Received: 29 May 2014
Revised: 16 July 2014
Accepted: 24 July 2014
First Online: 1 September 2014
Competing interests
: HN, HJ, KN, YN, NS and HM are employees of Ajinomoto Co., Inc. TW is the CEO of Link and Communication Co., Inc. TW and KI received research grants from Ajinomoto Co., Inc. No other potential conflicts of interest relevant to this article are declared.