Todurov, B. M., Markovets–ź. V., Zograbyan, A. R., & Demyanchuk, V. B. (2016). Early results of ultrasonic aortic valve decalcification. Ukrainian Journal of Cardiovascular Surgery, (1 (24), 45-48. Retrieved from https://cvs.org.ua/index.php/ujcvs/article/view/264