State of microcircuiation in cardiac chamber walls in elderly patients with aortic stenosis combined with coronary heart disease - A. M. Karaskov; O. V. Kamenskaya; Ye. N. Yurgel; S. P. Mironenko; S. I. Zheleznev; A. S. Klinkova (Патология кровообращения и кардиохирургия, 2018)