Crossed Swords Sign: A 3-Dimensional Echocardiographic Appearance
Gao, Zhifeng, Jeffrey Bortman, Feroze Mahmood, Robina Matyal, and Kamal Khabbaz. 2019. “Crossed Swords Sign: A 3-Dimensional Echocardiographic Appearance”. Anesthesia and Analgesia Practice 12 (11): 416-19.