“INTEGRAL VALUES OF ELECTROCARDIOGRAPHY IN SICK CHILDREN WITH PREMATURE VENTRICULAR EXCITATION”. Journal of Science-Innovative Research in Uzbekistan 2, no. 9 (September 19, 2024): 41–47. Accessed November 24, 2024. https://universalpublishings.com/~niverta1/index.php/jsiru/article/view/6983.