F. L. T., D. Naveen, R. P., P. Gopinath, and G. K. K., “Role of endometriosis fertility index system in predicting non-IVF conception in patients with surgically documented endometriosis”, Int J Reprod Contracept Obstet Gynecol, vol. 8, no. 6, pp. 2363–2367, May 2019.