N. L. Ambounda, S. H. Woromogo, F. E. Yagata Moussa, A. J. Kouanang, and V. N. Simo Tekem, “Sexuality and behaviour of adolescents in relationship to sexually transmitted diseases in Libreville: a cross-sectional study”, Int J Reprod Contracept Obstet Gynecol, vol. 9, no. 7, pp. 2782–2787, Jun. 2020.