[1] Japan Univ Econ, Pharm Management Inst, Grad Sch Business, 25-17 Sakuragaoka Chou,Shibuya Ku, Tokyo 1500031, Japan
[2] Sci Res Works Peer Support Grp SRWS PSG, Osaka, Japan
[3] Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Epidemiol, 2-5-1 Shikata Cho, Okayama 7008558, Japan
[4] Kansai Med Univ, Grad Sch Med, Dept Obstet & Gynecol, Shinmachi 2-5-1, Hirakata, Osaka 5731010, Japan