@misc{indiciae65027c4bf16e,
  title = {Lone U wave inversion after exercise; cine-arteriographic correlation.},
  author = {H D Friedberg and G F D'Cunha},
  year = {1968},
  doi = {10.1378/chest.54.5.477},
  url = {https://pubmed.ncbi.nlm.nih.gov/5698596/},
  note = {Source identifier: 5698596}
}