[1
]departmentTropical Medicine and Global Health , Nagasaki University , Nagasaki, Japan
[2
]departmentInstitute of Tropical Medicine , London School of Hygiene & Tropical Medicine , London, UK
[3
]departmentDepartment of Global Health Policy , The University of Tokyo , Bunkyo-ku, Japan
[4
]departmentHitotsubashi Institute for Advanced Study , Hitotsubashi University , Kunitachi, Tokyo, Japan
[5
]departmentGraduate School of Public Health , St. Luke's International University , Chuo-ku, Tokyo, Japan
[6
]departmentDepartment of Health Policy and Management , Keio University , Tokyo, Japan
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