Kushtagi, Pralhad, and Anoosha Emani. “Arterial Resistance in Late First Trimester As a Predictor of Subsequent Pregnancy-Related Hypertension”. Sultan Qaboos University Medical Journal 16, no. 4 (November 1, 2016): 451–457. Accessed May 5, 2024. https://journals.squ.edu.om/index.php/squmj/article/view/2184.