Aslam, Muhammad, Lubna Ijaz, Shamsa Tariq, Kausar Shafqat, Meher-un Nisa, Rubina Ashraf, and Tahira Kazmi. 2007. “Comparison of Transvaginal Sonography and Saline Contrast Sonohysterography in Women”. International Journal of Health Sciences 1 (1). https://pub.qu.edu.sa/index.php/journal/article/view/107.