Bagchi, S., Sah, S. and Agrawal, T. 2017. Effect of intrauterine copper device on cervical cytology and its comparison with other contraceptive methods. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 5, 8 (Jan. 2017), 2795–2798. DOI:https://doi.org/10.18203/2320-1770.ijrcog20162668.