Ridde, Valéry ; Leppert, Gerald ; Hien, Hervé ; Robyn, Paul J. ; De-Allegri, Manuela (2018) Street-level workers’ inadequate knowledge and application of exemption policies in Burkina Faso jeopardize the achievement of universal health coverage: evidence from a cross-sectional survey. International Journal for Equity in Health, 17 (5). pp. 1-13. ISSN 1475-9276