Градации давления в правом предсердии в зависимости от состояния НПВ.
References:
Lang, R. et al. (2015). Recommendations for Cardiac Chamber Quantification by Echocardiography in Adults.. Journal of American Society of Echocardiography, 28(1). Retrieved from https://www.cardioserv.net/how-to-estimate-right-atrial-pressure/