Ijeoma, Ezeome, and Umeh Uchenna. “Fertility Awareness-Based Contraception: Knowledge and Attitudes Among Nigerian Gynaecologists”. Niger Delta Journal of Medical Sciences (NDJMS) 2, no. 4 (August 2, 2020): 28–38. Accessed August 1, 2026. https://www.ndjms.org.ng/index.php/home/article/view/37.