Wibisono, Jacobus Jeno, Serena Onasis, Sri Mulyani Rana Nikendari, Aryasena Andhika, and Maria Georgina Wibisono. “Transvaginal Ultrasound As an Indicator of Preterm Birth”. Medicinus 12, no. 2 (June 12, 2023): 146–148. Accessed November 20, 2025. https://ojs.uph.edu/index.php/MED/article/view/7039.