Rai, Chanda, Harsha Shailesh Gaikwad, and Rohini Gupta. 2017. “Rare Incidence of Yolk Sac Tumor in Pregnancy Posing Management Challenge: A Case Report”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 5 (8):2853-55. https://doi.org/10.18203/2320-1770.ijrcog20162681.