Authors: Lucia Cimarra.
Authors: Rex Friday Ogoronte Alderton Ijah, Nkemsinachi M. Onodingene, Linda U. Iroegbu-Emeruem, Friday E. Aaron, Michael Ogamba, Akpevweoghene D. Maduka, Ibinabo Oboro.
Authors: Rex Friday Ogoronte Alderton Ijah, Linda U. Iroegbu-Emeruem, Mary Obidiya Okuku, Nwizor Monday Nkadam, Victoria Amagboruju.
Authors: Mariama II Guirassy, Keita Doubany Mariame, Moussa Diakité, Nouhan Keita, Fofana Naby, Camara Naby Soriba.