Hasegawa, Tomoya, Naoaki Kuji, Tatsuya   Isomura, Fumiaki Notake, Tetsu Tsukamoto, Toru Sasaki, Motohiro Shimizu, et al. “Ultrasound Elastography Can Detect Placental Tissue Abnormalities”. Radiology and Oncology 52, no. 2 (May 23, 2018). Accessed April 18, 2026. https://www.radioloncol.com/index.php/ro/article/view/2955.