@article{article2087,
  title = {Prevention of calcification with TPEN in pericardial bio-prosthetic heart valve material},
  author = {Shirafkan, A. and Gholamrezanezhad, A.},
  journal = {The Anatolian Journal of Cardiology},
  year = {2008},
  volume = {8},
  pages = {82-82},
  doi = {}
}