Shetty, S. K., H. Shetty, and S. Rai. “Laparoscopic Evaluation of Tubal Factor in Cases of Infertility”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 2, no. 3, Dec. 2016, pp. 410-3, https://www.ijrcog.org/index.php/ijrcog/article/view/119.