Wutthiphan, B., W. Watkins, A. Speirs, and H. G. Baker. “Factors Affecting IVF Implantation Rates in Patients with Tubal Disease”. Thai Journal of Obstetrics and Gynaecology, vol. 12, no. 2, Aug. 2017, pp. 129-33, https://he02.tci-thaijo.org/index.php/tjog/article/view/97347.