Additional file 1: of Presence of three dengue serotypes in Ouagadougou (Burkina Faso): research and public health implications RiddeValéry AgierIsabelle BonnetEmmanuel CarabaliMabel DabiréKounbobr FournetFlorence LyAntarou MedaIvlabèhiré ParraBeatriz 2016 Multilingual abstracts in the six official working languages of the United Nations. (PDF 351 kb)