Abiodun, Omole Ohonsi, and Belga Francis. “Factors Associated With Spontaneous Preterm Delivery in a Nigerian Teaching Hospital”. Bangladesh Journal of Obstetrics & Gynaecology 29, no. 1 (November 26, 2016): 9–14. Accessed November 21, 2024. https://banglajol.info/index.php/BJOG/article/view/30437.