Patel, K., D. Painter, V. M. Bhagat, and P. Shah. “Sporadic Ovarian Sex Cord-Stromal Tumor With Annular Tubules: A Rare Case Report”. International Journal of Research in Medical Sciences, vol. 7, no. 9, Aug. 2019, pp. 3591-4, doi:10.18203/2320-6012.ijrms20193955.