[Noninvasive methods in assessing the function of heart valve prostheses].

@article{Markhasina1987NoninvasiveMI,
  title={[Noninvasive methods in assessing the function of heart valve prostheses].},
  author={I p Markhasina},
  journal={Kardiologiia},
  year={1987},
  volume={27 4},
  pages={102-4}
}