Lakhno, I.V., A.V. Pechenin, and V.I. Shulgin. “OPPORTUNITIES OF NONINVASIVE FETAL ELECROCARDIOGRAM ASSESSMENT”. The Journal of V. N. Karazin Kharkiv National University, series "Medicine"0, no. 12 (1): 93-99. Accessed April 28, 2024. https://periodicals.karazin.ua/medicine/article/view/7120.