Shioya N, Inoue N, Muto H, Tomita A, Tsukamoto Y, Kawashima N, Hazama K, Shichinohe Y. Delayed diagnosis of traumatic ventricular septal perforation in penetrating chest injury: hematoma formation in the ventricular septum in CT suggests perforation. Acute Med Surg. 2019 Jul; 6(3):321-324.