Journal Article
                        
                        Billong, Serge-Clotaire, Joseph  Fokam, Edson-Joan  Billong, Georges  Nguefack-Tsague, Marie-Josee  Essi, Raoul  Fodjo, Samuel-Martin  Sosso, Armelle  Gomba, Joseph  Mosoko-Jembia, and Gabriel  Loni-Ekali.  
"Epidemiological distribution of HIV infection among pregnant women in the ten regions of Cameroon and strategic implications for prevention programs." (2015) The Pan African Medical Journal.