Mileva, Niya Boykova, and Dobrin Iotkov Vassilev. “Intravascular Ultrasound Imaging for Evaluation of Aortic Elastic Properties: Review of the Literature and a Single-Center Experience”. Cardiology and Cardiovascular Medicine, vol. 4, no. 4, Aug. 2020, pp. 396-9, http://www.fortunejournals.org/ojs/index.php/ccm/article/view/15901.