{{Cite journal| doi = 10.3390/ijerph17186543| issn = 1660-4601| volume = 17| issue = 18| pages = 6543| last1 = Beaugé| first1 = Yvonne| last2 = De Allegri| first2 = Manuela| last3 = Ouédraogo| first3 = Samiratou| last4 = Bonnet| first4 = Emmanuel| last5 = Kuunibe| first5 = Naasegnibe| last6 = Ridde| first6 = Valéry| title = Do Targeted User Fee Exemptions Reach the Ultra-Poor and Increase their Healthcare Utilisation? A Panel Study from Burkina Faso| journal = International Journal of Environmental Research and Public Health| access-date = 2020-09-10| date = 2020-09-08| url = https://www.mdpi.com/1660-4601/17/18/6543}}