@misc{indiciae463047967c23,
  title = {Left ventricular dysfunction in obstructive lung disease: an echocardiographic and angiographic study of cor pulmonale patients with decreased mitral E-F slope.},
  author = {G J Song and P J Oldershaw},
  year = {1989},
  doi = {10.1016/0167-5273(89)90161-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/2793262/},
  note = {Source identifier: 2793262}
}