Ahmed, Aliya, et al. “The DIAGNOSTIC ACCURACY OF ULTRASOUND FOR MORBIDLY ADHERENT PLACENTA: Diagnostic Accuracy of Ultrasound for Morbidly Adherent Placenta by Using Placenta Accreta Index Keeping Per-Operative Findings As Gold Standard”. Journal of Ayub Medical College Abbottabad, vol. 37, no. 3, Jan. 2026, pp. 311-4, https://demo.ayubmed.edu.pk/index.php/jamc/article/view/13911.