Using health and demographic surveillance systems for teratovigilance in Africa. Issue 12 (December 2016) - Kirakoya-Samadoulougou, Fati; Sombié, Issiaka; Ogutu, Bernhards; Tinto, Halidou; Kouanda, Seni; Tiono, Alfred B; Otieno, Walter; Dodoo, Alexander; Kamanda, Mamusu; Sankoh, Osman