New clinical-echocardiographic method to reveal obstructive сoronary artery disease presence with index of coronary obstruction calculation: its cha­­­racteristics and verification. Ukrainian Journal of Cardiology, [S. l.], v. 25, n. 4, p. 91–96, 2018. DOI: 10.31928/1608-635X-2018.4.9196. Disponível em: https://ucardioj.com.ua/index.php/UJC/article/view/34.. Acesso em: 29 apr. 2024.