Sakata, Satoko
Tsuchihashi, Takuya
Oniki, Hideyuki
Tominaga, Mitsuhiro
Arakawa, Kimika
Sakaki, Minako
Kitazono, Takanari
Article History
Received: 15 July 2014
Revised: 7 November 2014
Accepted: 12 November 2014
First Online: 19 March 2015
Competing interests
: TT has received funding for clinical research from MSD KK and honoraria from MSD KK and Dainippon Sumitomo Pharma. The remaining authors declare no conflict of interest.