@article{article4407,
  title = {Can a patient with pulmonary hypertension travel safely by plane?},
  author = {Ekici, B.},
  journal = {The Anatolian Journal of Cardiology},
  year = {2021},
  volume = {25},
  pages = {29-30},
  doi = {10.5152/AnatolJCardiol.2021.S111}
}