Korovay, S., S. Stetsenko, and A. Bondareva. “Evaluation of Nitrogen Oxide Metabolism and Endothelin-1 Synthesis in Women With Early Termination of Pregnancy at Different Gestational Age”. Experimental and Clinical Medicine, Vol. 83, no. 2, Mar. 2020, pp. 76-85, doi:10.35339/ekm.2019.83.02.11.