Text ( visual ) : unmediated Ghana National Health Insurance Scheme : improving financial sustainability based on expenditure review / Huihui Wang, Nathaniel Otoo, and Lydia Dsane-Selby. -- : paper. -- Washington, D.C. : World Bank Group , c2017. -- xiii, 53 p. : ill. ; 26 cm. -- (A World Bank study). -- ISBN 9781464811173 ; (BB25161598) ; https://ci.nii.ac.jp/ncid/BB25161598 Author Heading(s): Wang, Huihui ; Otoo, Nathaniel ; Dsane-Selby, Lydia