JA, O., A. . AA, and A. . AB. “Ectopic Pregnancy in an Urban Tertiary Centre in Southern Nigeria: Emerging Trends”. African Journal of Tropical Medicine and Biomedical Research, vol. 1, no. 3, Nov. 2020, pp. 11-17, https://www.ajtmbr.org.ng/index.php/home/article/view/11.