Hana, Kanika Sharma, Umama Ashhar MD, Gunjan Sharma, Prem Kapur, and Manju Sharma. 2017. “Epidemiological Studies for Oral Contraceptive Pills Prescription Pattern, Its Efficacy and Side Effects in a South Delhi Teaching Hospital”. International Journal of Research in Pharmaceutical Sciences 8 (3), 432-38. https://pharmascope.org/ijrps/article/view/632.