Abrolov H.K, Mamatov M.A., and Murotov U.A. “Modified Variant of Correction of Abnormal Pulmonary Vein Drainage”. Eurasian Medical Research Periodical, vol. 17, Feb. 2023, pp. 110-4, https://geniusjournals.org/index.php/emrp/article/view/3508.