Ambreen Usmani ,Rashid Anjum , Muhammad Saeed. “Ultrasonic Measurement of Female Pelvic Reproductive Organs and Comparison of Body Mass Index(BMI)Between Fertile and Infertile Women”. Journal of Rawalpindi Medical College, vol. 16, no. 2, Dec. 2012, https://journalrmc.com/index.php/JRMC/article/view/578.