@article{Sobolev2015causes,
author={Sobolev, Y.. and Medvedev, A..},
title={Causes and results of valve replacement in patients with congenital heart defects},
journal={Journal of New Medical Technologies. eJournal},
publisher={INFRA-M Academic Publishing LLC.},
year={2015},
pages={0-0},
volume={9},
issue={3},
}