Oranye, B. C., A. O. Adekunle, A. O. Arowojolu, O. Makanjuola, and B. Tayo. “Comparative Study of Cervical-Vaginal Microbial Flora Changes in Women Using Cu-T380A Contraceptive Device and LNG-IUS in Ibadan: A Two-Centre Clinical COHORT Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 10, no. 10, Sept. 2021, pp. 3703-10, doi:10.18203/2320-1770.ijrcog20213833.