Smiyan, S. I., B. O. Koshak, and I. V. Gnatko. 2017. “ENDOTHELIAL DYSFUNCTION AND CARDIOVASCULAR RISK IN PATIENTS WITH ANKYLOSING SPONDYLITIS”. International Journal of Medicine and Medical Research 3 (2):5-9. https://doi.org/10.11603/ijmmr.2413-6077.2017.2.7935.