Yamamoto, Tatsuhiro
Shikano, Kotaro
Nanki, Toshihiro
Kawai, Shinichi
Article History
Received: 15 June 2016
Accepted: 29 September 2016
First Online: 18 October 2016
Competing interests
: Dr. Kawai’s work has been funded in part by Pfizer Japan Inc., Mitsubishi-Tanabe Pharma Co., and Ayumi Pharmaceutical Co. He has received research funds from these companies, manufacturers and distributors of methotrexate capsules or tablets in Japan. Drs Kawai and Nanki have received speaking fees for the seminars sponsored by these companies. Drs. Yamamoto and Shikano declare no potential conflict of interest.