Ezechukwu, Clement C, Chijioke E Ezeudu, Nkechinyere Obichukwu, Sunday Ameh, and Amara Egbuogu. “ Nigeria: Risk Factors of Preterm Delivery and Its Prevalence in a Tertiary Hospital”. Tropical Journal of Medical Research 21, no. 2 (November 15, 2022): 49–55. Accessed November 21, 2024. https://tjmr.org.ng/index.php/tjmr/article/view/37.