Okpani A, Okpani J. Sexual Activity and Contraceptive Use among Female Adolescents – A Report from Port Harcourt, Nigeria. Afr. J. Repro. Health [Internet]. 2000 Jan. 1 [cited 2026 Sep. 28];4(1):40-7. Available from: https://www.ajol.info/index.php/ajrh/article/view/7719