Clinical efficiency and safety of ethacizine in patients with symptomatic ventricular extrasystoles without severe structural damage of the myocardium. Ukrainian Journal of Cardiology, [S. l.], n. 4, p. 90–99, 2017. Disponível em: https://ucardioj.com.ua/index.php/UJC/article/view/129.. Acesso em: 3 may. 2024.