1 Pharmacy Management Institute, Graduate School of Business, Japan University of Economics, 25-17, Sakuragaoka-chou, Shibuya-ku, Tokyo 150-0031, Japan.
2 Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, Japan.
3 Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
4 Department of Obstetrics and Gynecology, Kansai Medical University Graduate School of Medicine, Shinmachi 2-5-1, Hirakata-shi, Osaka 573-1010, Japan.