Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector7683710.17816/kazmj76837Research ArticleA case of non-overgrowth of the Botall's ductAdoE. I.info@eco-vector.com150919242076987022707202127072021Copyright © 2021, Ado E.I.2021<p>Recognition of congenital heart defects, in particular the determination of the exact localization of the lesion in them, is often associated with rather significant difficulties, and sometimes it is completely impossible.</p>Kazan Medical archiveКазанский медицинский архив