Khatun, Sayada Fatema, et al. “Prolonged Use of Oral Contraceptive Pill, a Co-Factor for the Development of Cervical Cancer”. Bangabandhu Sheikh Mujib Medical University Journal, vol. 11, no. 3, Sept. 2018, pp. 222-5, doi:10.3329/bsmmuj.v11i3.37279.