Dubey, S., Mehra, R., Goel, P., Rani, J., & Satodiya, M. (2018). Maternal complications in twin pregnancy; recent trends: a study at a tertiary care referral institute in Northern India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 7(9), 3753–3757. https://doi.org/10.18203/2320-1770.ijrcog20183789