Vashistha, P., P. Kashyap, A. Kumar, C. A. Sethi, and S. Rana. “Fetus Papyraceous, a Rare Complication of Twin Pregnancy: Case Report”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 10, no. 1, Dec. 2020, pp. 361-3, doi:10.18203/2320-1770.ijrcog20205799.