{{Cite conference| publisher = poster n° 128| conference = World Hepatitis Summit 2017| last1 = Razafia| first1 = Hobisandratra| last2 = Mattern| first2 = Chiarella| last3 = Pourette| first3 = Dolorès| last4 = Giles-Vernick| first4 = Tamara| title = Potential Barriers to implementing timely birth dose vaccination of Hepatitis B in sub-Saharan Africa. An anthropological study in Madagascar| location = Sao Paulo| date = 2017-11}}