Susa, Takao
Iizuka, Masayoshi
Okinaga, Hiroko
Tamamori-Adachi, Mimi
Okazaki, Tomoki
Article History
Received: 2 January 2018
Accepted: 4 June 2018
First Online: 13 June 2018
Competing Interests
: T.O.’s work has been funded by the 25OHD<sub>3</sub> research group established in the Medical Corporation Foundation Kenkoin Clinic (Tokyo, Japan). T.O. received the 25OHD<sub>3</sub> used in this study for free from DSM Nutritional Products, Ltd. (Basel, Switzerland). T.S., M.I., H.O. and M.T.-A. declare no potential conflict of interest.