Ochie K, C AJ. A two-phase sonographic study among women with infertility who first had normal sonographic findings. Clin J Obstet Gynecol [Internet]. 2022 Dec. 15 [cited 2025 Dec. 3];5(4):101-3. Available from: https://www.obstetricgynecoljournal.com/index.php/cjog/article/view/cjog-aid1117