Sakai, Takafumi
Moteki, Yasuhiro
Takahashi, Takuya
Shida, Kan
Kiwaki, Mayumi
Shimakawa, Yasuhisa
Matsui, Akihisa
Chonan, Osamu
Morikawa, Kazuya
Ohta, Toshiko
Ohshima, Hiroshi
Furukawa, Satoshi
Funding for this research was provided by:
Yakult Honsha Co., Ltd.
Japan Aerospace Exploration Agency
Article History
Received: 16 February 2018
Accepted: 5 July 2018
First Online: 16 July 2018
Competing Interests
: T.S., Y.M., T.T., K.S., M.K., Y.S., A.M. and O.C. were employees of Yakult Honsha Co., Ltd, H.O. and S.F. were employees of JAXA, K.M. was a visiting researcher of JAXA and T.O. was a research adviser of JAXA during the period in which the study was conducted. The authors declare no non-financial competing interests.