Kovalchuk, A. O., Kravchenko, T. V., Estrin, S. I., Antonyuk, S. O., Akobirov, Y. S., & Chizhikova, O. V. (2018). First clinical experience of combined treatment of patients with atrial septal defect and atrial fibrillation using a two-staged approach. Ukrainian Journal of Cardiovascular Surgery, (2 (31), 122-126. https://doi.org/10.30702/ujcvs/18.31/27(122-126)