HAUWA UMAR USMAN, HAUWA UMAR USMAN, and IBRAHIM HASSAN ABUBAKAR. “HEALTH EFFECTS OF AIR POLLUTION ON PREGNANCY”. NIGERIAN JOURNAL OF HEALTH PROMOTION 8, no. 1 (September 22, 2015). Accessed November 21, 2024. https://journals.aphriapub.com/index.php/NJHP/article/view/1883.