[1] Keio Univ, Sch Med, Dept Hlth Policy & Management, Shinjyuku Ku, 35 Shinanomachi, Tokyo 1608582, Japan
[2] Tokyo Fdn Policy Res, Tokyo 321, Japan
[3] Washington Univ, Med Educ Program, Sch Med, 660 S Euclid Ave, St Louis, MO 63110 USA
[4] Osaka Univ, Ctr Infect Dis Educ & Res, Div Sci Informat & Publ Policy, 2-8 Yamadaoka, Suita, Osaka 5650871, Japan
[5] Univ Tokyo, Grad Sch Med, Dept Global Hlth Policy, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138654, Japan
[6] Chiba Univ, Ctr Prevent Med Sci, Dept Sustainable Hlth Sci, Inage Ku, 1-33 Yayoi Cho, Chiba 2638522, Japan
[7] St Marianna Univ, Sch Med, Dept Infect Dis, Miyamae Ku, 2-16-1 Sugao, Kawasaki, Kanagawa 2168511, Japan
[8] Nagasaki Univ, Inst Trop Med, Dept Ecoepidemiol, 1-12-4 Sakamoto, Nagasaki 8528523, Japan